Home / 738,485.40-1,019,131.20-416,177.76

Finding the Fourth Proportional to 738,485.40, 1,019,131.20 and 416,177.76

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Solution

The fourth proportional to 738,485.40, 1,019,131.20 and 416,177.76 is: 574,337.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,485.40 : 1,019,131.20 = 416,177.76 : x
  2. Step 2: Convert to fraction form
    738,485.40/1,019,131.20 = 416,177.76/x
  3. Step 3: Cross multiply
    738,485.40x = 1,019,131.20 × 416,177.76
  4. Step 4: Simplify right side
    738,485.40x = 424,139,739,962.11
  5. Step 5: Solve for x
    x = 424,139,739,962.11/738,485.40
  6. Step 6: Final answer
    x = 574,337.34

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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.