Home / 709,000.30-1,063,500.45-210,364.30

Finding the Fourth Proportional to 709,000.30, 1,063,500.45 and 210,364.30

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Solution

The fourth proportional to 709,000.30, 1,063,500.45 and 210,364.30 is: 315,546.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,000.30 : 1,063,500.45 = 210,364.30 : x
  2. Step 2: Convert to fraction form
    709,000.30/1,063,500.45 = 210,364.30/x
  3. Step 3: Cross multiply
    709,000.30x = 1,063,500.45 × 210,364.30
  4. Step 4: Simplify right side
    709,000.30x = 223,722,527,713.94
  5. Step 5: Solve for x
    x = 223,722,527,713.94/709,000.30
  6. Step 6: Final answer
    x = 315,546.45

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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.