Home / 709,489.70-1,064,234.55-210,853.70

Finding the Fourth Proportional to 709,489.70, 1,064,234.55 and 210,853.70

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Solution

The fourth proportional to 709,489.70, 1,064,234.55 and 210,853.70 is: 316,280.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,489.70 : 1,064,234.55 = 210,853.70 : x
  2. Step 2: Convert to fraction form
    709,489.70/1,064,234.55 = 210,853.70/x
  3. Step 3: Cross multiply
    709,489.70x = 1,064,234.55 × 210,853.70
  4. Step 4: Simplify right side
    709,489.70x = 224,397,792,535.34
  5. Step 5: Solve for x
    x = 224,397,792,535.34/709,489.70
  6. Step 6: Final answer
    x = 316,280.55

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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.