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Finding the Fourth Proportional to 404,829.60, 607,244.40 and 387,552.30

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Solution

The fourth proportional to 404,829.60, 607,244.40 and 387,552.30 is: 581,328.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,829.60 : 607,244.40 = 387,552.30 : x
  2. Step 2: Convert to fraction form
    404,829.60/607,244.40 = 387,552.30/x
  3. Step 3: Cross multiply
    404,829.60x = 607,244.40 × 387,552.30
  4. Step 4: Simplify right side
    404,829.60x = 235,338,963,882.12
  5. Step 5: Solve for x
    x = 235,338,963,882.12/404,829.60
  6. Step 6: Final answer
    x = 581,328.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.