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Finding the Fourth Proportional to 703,521.31, 970,860.23 and 381,228.59

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Solution

The fourth proportional to 703,521.31, 970,860.23 and 381,228.59 is: 526,095.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,521.31 : 970,860.23 = 381,228.59 : x
  2. Step 2: Convert to fraction form
    703,521.31/970,860.23 = 381,228.59/x
  3. Step 3: Cross multiply
    703,521.31x = 970,860.23 × 381,228.59
  4. Step 4: Simplify right side
    703,521.31x = 370,119,676,569.98
  5. Step 5: Solve for x
    x = 370,119,676,569.98/703,521.31
  6. Step 6: Final answer
    x = 526,095.90

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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.