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Finding the Fourth Proportional to 648,872.55, 973,308.60 and 472,501.92

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Solution

The fourth proportional to 648,872.55, 973,308.60 and 472,501.92 is: 708,752.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,872.55 : 973,308.60 = 472,501.92 : x
  2. Step 2: Convert to fraction form
    648,872.55/973,308.60 = 472,501.92/x
  3. Step 3: Cross multiply
    648,872.55x = 973,308.60 × 472,501.92
  4. Step 4: Simplify right side
    648,872.55x = 459,890,182,252.51
  5. Step 5: Solve for x
    x = 459,890,182,252.51/648,872.55
  6. Step 6: Final answer
    x = 708,752.72

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Double scale
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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.