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Finding the Fourth Proportional to 703,813.30, 971,263.65 and 381,522.40

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Solution

The fourth proportional to 703,813.30, 971,263.65 and 381,522.40 is: 526,501.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,813.30 : 971,263.65 = 381,522.40 : x
  2. Step 2: Convert to fraction form
    703,813.30/971,263.65 = 381,522.40/x
  3. Step 3: Cross multiply
    703,813.30x = 971,263.65 × 381,522.40
  4. Step 4: Simplify right side
    703,813.30x = 370,558,838,780.76
  5. Step 5: Solve for x
    x = 370,558,838,780.76/703,813.30
  6. Step 6: Final answer
    x = 526,501.61

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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.