Home / 709,842.70-1,064,764.05-658,521.10

Finding the Fourth Proportional to 709,842.70, 1,064,764.05 and 658,521.10

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Solution

The fourth proportional to 709,842.70, 1,064,764.05 and 658,521.10 is: 987,781.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,842.70 : 1,064,764.05 = 658,521.10 : x
  2. Step 2: Convert to fraction form
    709,842.70/1,064,764.05 = 658,521.10/x
  3. Step 3: Cross multiply
    709,842.70x = 1,064,764.05 × 658,521.10
  4. Step 4: Simplify right side
    709,842.70x = 701,169,593,446.46
  5. Step 5: Solve for x
    x = 701,169,593,446.46/709,842.70
  6. Step 6: Final answer
    x = 987,781.65

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.