Home / 648,635.90-972,953.87-472,265.28

Finding the Fourth Proportional to 648,635.90, 972,953.87 and 472,265.28

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Solution

The fourth proportional to 648,635.90, 972,953.87 and 472,265.28 is: 708,397.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,635.90 : 972,953.87 = 472,265.28 : x
  2. Step 2: Convert to fraction form
    648,635.90/972,953.87 = 472,265.28/x
  3. Step 3: Cross multiply
    648,635.90x = 972,953.87 × 472,265.28
  4. Step 4: Simplify right side
    648,635.90x = 459,492,329,481.31
  5. Step 5: Solve for x
    x = 459,492,329,481.31/648,635.90
  6. Step 6: Final answer
    x = 708,397.94

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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.