Home / 766,316.13-1,057,549.08-426,784.38

Finding the Fourth Proportional to 766,316.13, 1,057,549.08 and 426,784.38

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Solution

The fourth proportional to 766,316.13, 1,057,549.08 and 426,784.38 is: 588,980.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,316.13 : 1,057,549.08 = 426,784.38 : x
  2. Step 2: Convert to fraction form
    766,316.13/1,057,549.08 = 426,784.38/x
  3. Step 3: Cross multiply
    766,316.13x = 1,057,549.08 × 426,784.38
  4. Step 4: Simplify right side
    766,316.13x = 451,345,428,427.37
  5. Step 5: Solve for x
    x = 451,345,428,427.37/766,316.13
  6. Step 6: Final answer
    x = 588,980.72

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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.