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Finding the Fourth Proportional to 653,300.32, 901,470.80 and 381,305.92

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Solution

The fourth proportional to 653,300.32, 901,470.80 and 381,305.92 is: 526,153.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,300.32 : 901,470.80 = 381,305.92 : x
  2. Step 2: Convert to fraction form
    653,300.32/901,470.80 = 381,305.92/x
  3. Step 3: Cross multiply
    653,300.32x = 901,470.80 × 381,305.92
  4. Step 4: Simplify right side
    653,300.32x = 343,736,152,747.14
  5. Step 5: Solve for x
    x = 343,736,152,747.14/653,300.32
  6. Step 6: Final answer
    x = 526,153.35

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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.