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Finding the Fourth Proportional to 703,314.27, 970,569.81 and 381,030.66

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Solution

The fourth proportional to 703,314.27, 970,569.81 and 381,030.66 is: 525,820.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,314.27 : 970,569.81 = 381,030.66 : x
  2. Step 2: Convert to fraction form
    703,314.27/970,569.81 = 381,030.66/x
  3. Step 3: Cross multiply
    703,314.27x = 970,569.81 × 381,030.66
  4. Step 4: Simplify right side
    703,314.27x = 369,816,855,280.38
  5. Step 5: Solve for x
    x = 369,816,855,280.38/703,314.27
  6. Step 6: Final answer
    x = 525,820.21

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Double scale
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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.