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Finding the Fourth Proportional to 487,798.10, 730,822.35 and 417,814.10

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Solution

The fourth proportional to 487,798.10, 730,822.35 and 417,814.10 is: 625,971.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,798.10 : 730,822.35 = 417,814.10 : x
  2. Step 2: Convert to fraction form
    487,798.10/730,822.35 = 417,814.10/x
  3. Step 3: Cross multiply
    487,798.10x = 730,822.35 × 417,814.10
  4. Step 4: Simplify right side
    487,798.10x = 305,347,882,425.14
  5. Step 5: Solve for x
    x = 305,347,882,425.14/487,798.10
  6. Step 6: Final answer
    x = 625,971.86

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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.