Home / 771,412.38-1,064,660.76-431,902.50

Finding the Fourth Proportional to 771,412.38, 1,064,660.76 and 431,902.50

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Solution

The fourth proportional to 771,412.38, 1,064,660.76 and 431,902.50 is: 596,087.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,412.38 : 1,064,660.76 = 431,902.50 : x
  2. Step 2: Convert to fraction form
    771,412.38/1,064,660.76 = 431,902.50/x
  3. Step 3: Cross multiply
    771,412.38x = 1,064,660.76 × 431,902.50
  4. Step 4: Simplify right side
    771,412.38x = 459,829,643,895.90
  5. Step 5: Solve for x
    x = 459,829,643,895.90/771,412.38
  6. Step 6: Final answer
    x = 596,087.98

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Double scale
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Similar ratio
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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.