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Finding the Fourth Proportional to 659,609.65, 910,264.68 and 373,123.58

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Solution

The fourth proportional to 659,609.65, 910,264.68 and 373,123.58 is: 514,912.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,609.65 : 910,264.68 = 373,123.58 : x
  2. Step 2: Convert to fraction form
    659,609.65/910,264.68 = 373,123.58/x
  3. Step 3: Cross multiply
    659,609.65x = 910,264.68 × 373,123.58
  4. Step 4: Simplify right side
    659,609.65x = 339,641,218,424.82
  5. Step 5: Solve for x
    x = 339,641,218,424.82/659,609.65
  6. Step 6: Final answer
    x = 514,912.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.