Home / 766,308.66-1,057,538.76-426,776.91

Finding the Fourth Proportional to 766,308.66, 1,057,538.76 and 426,776.91

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Solution

The fourth proportional to 766,308.66, 1,057,538.76 and 426,776.91 is: 588,970.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,308.66 : 1,057,538.76 = 426,776.91 : x
  2. Step 2: Convert to fraction form
    766,308.66/1,057,538.76 = 426,776.91/x
  3. Step 3: Cross multiply
    766,308.66x = 1,057,538.76 × 426,776.91
  4. Step 4: Simplify right side
    766,308.66x = 451,333,124,198.03
  5. Step 5: Solve for x
    x = 451,333,124,198.03/766,308.66
  6. Step 6: Final answer
    x = 588,970.41

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Double scale
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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.