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Finding the Fourth Proportional to 703,303.61, 970,553.61 and 381,011.40

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Solution

The fourth proportional to 703,303.61, 970,553.61 and 381,011.40 is: 525,792.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,303.61 : 970,553.61 = 381,011.40 : x
  2. Step 2: Convert to fraction form
    703,303.61/970,553.61 = 381,011.40/x
  3. Step 3: Cross multiply
    703,303.61x = 970,553.61 × 381,011.40
  4. Step 4: Simplify right side
    703,303.61x = 369,791,989,721.15
  5. Step 5: Solve for x
    x = 369,791,989,721.15/703,303.61
  6. Step 6: Final answer
    x = 525,792.82

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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.