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Finding the Fourth Proportional to 486,636.31, 666,680.54 and 468,442.29

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Solution

The fourth proportional to 486,636.31, 666,680.54 and 468,442.29 is: 641,755.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,636.31 : 666,680.54 = 468,442.29 : x
  2. Step 2: Convert to fraction form
    486,636.31/666,680.54 = 468,442.29/x
  3. Step 3: Cross multiply
    486,636.31x = 666,680.54 × 468,442.29
  4. Step 4: Simplify right side
    486,636.31x = 312,301,357,898.79
  5. Step 5: Solve for x
    x = 312,301,357,898.79/486,636.31
  6. Step 6: Final answer
    x = 641,755.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.