Home / 738,686.78-1,019,326.51-416,476.07

Finding the Fourth Proportional to 738,686.78, 1,019,326.51 and 416,476.07

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Solution

The fourth proportional to 738,686.78, 1,019,326.51 and 416,476.07 is: 574,702.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,686.78 : 1,019,326.51 = 416,476.07 : x
  2. Step 2: Convert to fraction form
    738,686.78/1,019,326.51 = 416,476.07/x
  3. Step 3: Cross multiply
    738,686.78x = 1,019,326.51 × 416,476.07
  4. Step 4: Simplify right side
    738,686.78x = 424,525,098,931.62
  5. Step 5: Solve for x
    x = 424,525,098,931.62/738,686.78
  6. Step 6: Final answer
    x = 574,702.45

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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.