Home / 711,320.90-1,069,314.15-502,405.70

Finding the Fourth Proportional to 711,320.90, 1,069,314.15 and 502,405.70

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Solution

The fourth proportional to 711,320.90, 1,069,314.15 and 502,405.70 is: 755,256.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,320.90 : 1,069,314.15 = 502,405.70 : x
  2. Step 2: Convert to fraction form
    711,320.90/1,069,314.15 = 502,405.70/x
  3. Step 3: Cross multiply
    711,320.90x = 1,069,314.15 × 502,405.70
  4. Step 4: Simplify right side
    711,320.90x = 537,229,524,050.66
  5. Step 5: Solve for x
    x = 537,229,524,050.66/711,320.90
  6. Step 6: Final answer
    x = 755,256.21

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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.