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Finding the Fourth Proportional to 703,008.95, 970,147.50 and 380,711.66

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Solution

The fourth proportional to 703,008.95, 970,147.50 and 380,711.66 is: 525,379.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,008.95 : 970,147.50 = 380,711.66 : x
  2. Step 2: Convert to fraction form
    703,008.95/970,147.50 = 380,711.66/x
  3. Step 3: Cross multiply
    703,008.95x = 970,147.50 × 380,711.66
  4. Step 4: Simplify right side
    703,008.95x = 369,346,465,169.85
  5. Step 5: Solve for x
    x = 369,346,465,169.85/703,008.95
  6. Step 6: Final answer
    x = 525,379.47

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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.