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Finding the Fourth Proportional to 487,795.60, 730,818.60 and 417,811.60

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Solution

The fourth proportional to 487,795.60, 730,818.60 and 417,811.60 is: 625,968.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,795.60 : 730,818.60 = 417,811.60 : x
  2. Step 2: Convert to fraction form
    487,795.60/730,818.60 = 417,811.60/x
  3. Step 3: Cross multiply
    487,795.60x = 730,818.60 × 417,811.60
  4. Step 4: Simplify right side
    487,795.60x = 305,344,488,575.76
  5. Step 5: Solve for x
    x = 305,344,488,575.76/487,795.60
  6. Step 6: Final answer
    x = 625,968.11

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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.