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Finding the Fourth Proportional to 648,792.55, 973,188.42 and 472,421.53

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Solution

The fourth proportional to 648,792.55, 973,188.42 and 472,421.53 is: 708,632.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,792.55 : 973,188.42 = 472,421.53 : x
  2. Step 2: Convert to fraction form
    648,792.55/973,188.42 = 472,421.53/x
  3. Step 3: Cross multiply
    648,792.55x = 973,188.42 × 472,421.53
  4. Step 4: Simplify right side
    648,792.55x = 459,755,162,354.68
  5. Step 5: Solve for x
    x = 459,755,162,354.68/648,792.55
  6. Step 6: Final answer
    x = 708,632.00

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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.