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Finding the Fourth Proportional to 703,239.53, 970,473.14 and 380,948.86

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Solution

The fourth proportional to 703,239.53, 970,473.14 and 380,948.86 is: 525,710.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,239.53 : 970,473.14 = 380,948.86 : x
  2. Step 2: Convert to fraction form
    703,239.53/970,473.14 = 380,948.86/x
  3. Step 3: Cross multiply
    703,239.53x = 970,473.14 × 380,948.86
  4. Step 4: Simplify right side
    703,239.53x = 369,700,636,343.62
  5. Step 5: Solve for x
    x = 369,700,636,343.62/703,239.53
  6. Step 6: Final answer
    x = 525,710.83

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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.