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Finding the Fourth Proportional to 487,374.60, 730,025.10 and 404,430.60

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Solution

The fourth proportional to 487,374.60, 730,025.10 and 404,430.60 is: 605,785.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,374.60 : 730,025.10 = 404,430.60 : x
  2. Step 2: Convert to fraction form
    487,374.60/730,025.10 = 404,430.60/x
  3. Step 3: Cross multiply
    487,374.60x = 730,025.10 × 404,430.60
  4. Step 4: Simplify right side
    487,374.60x = 295,244,489,208.06
  5. Step 5: Solve for x
    x = 295,244,489,208.06/487,374.60
  6. Step 6: Final answer
    x = 605,785.55

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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.