Home / 738,696.28-1,019,339.64-416,485.60

Finding the Fourth Proportional to 738,696.28, 1,019,339.64 and 416,485.60

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Solution

The fourth proportional to 738,696.28, 1,019,339.64 and 416,485.60 is: 574,715.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,696.28 : 1,019,339.64 = 416,485.60 : x
  2. Step 2: Convert to fraction form
    738,696.28/1,019,339.64 = 416,485.60/x
  3. Step 3: Cross multiply
    738,696.28x = 1,019,339.64 × 416,485.60
  4. Step 4: Simplify right side
    738,696.28x = 424,540,281,569.18
  5. Step 5: Solve for x
    x = 424,540,281,569.18/738,696.28
  6. Step 6: Final answer
    x = 574,715.61

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.