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Finding the Fourth Proportional to 511,426.62, 761,101.45 and 494,397.74

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Solution

The fourth proportional to 511,426.62, 761,101.45 and 494,397.74 is: 735,759.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,426.62 : 761,101.45 = 494,397.74 : x
  2. Step 2: Convert to fraction form
    511,426.62/761,101.45 = 494,397.74/x
  3. Step 3: Cross multiply
    511,426.62x = 761,101.45 × 494,397.74
  4. Step 4: Simplify right side
    511,426.62x = 376,286,837,457.48
  5. Step 5: Solve for x
    x = 376,286,837,457.48/511,426.62
  6. Step 6: Final answer
    x = 735,759.19

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.