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Finding the Fourth Proportional to 486,631.28, 666,673.71 and 468,437.30

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Solution

The fourth proportional to 486,631.28, 666,673.71 and 468,437.30 is: 641,748.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,631.28 : 666,673.71 = 468,437.30 : x
  2. Step 2: Convert to fraction form
    486,631.28/666,673.71 = 468,437.30/x
  3. Step 3: Cross multiply
    486,631.28x = 666,673.71 × 468,437.30
  4. Step 4: Simplify right side
    486,631.28x = 312,294,832,693.38
  5. Step 5: Solve for x
    x = 312,294,832,693.38/486,631.28
  6. Step 6: Final answer
    x = 641,748.37

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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.