Home / 1,381,295.28-2,072,263.45-434,641.40

Finding the Fourth Proportional to 1,381,295.28, 2,072,263.45 and 434,641.40

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Solution

The fourth proportional to 1,381,295.28, 2,072,263.45 and 434,641.40 is: 652,062.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,295.28 : 2,072,263.45 = 434,641.40 : x
  2. Step 2: Convert to fraction form
    1,381,295.28/2,072,263.45 = 434,641.40/x
  3. Step 3: Cross multiply
    1,381,295.28x = 2,072,263.45 × 434,641.40
  4. Step 4: Simplify right side
    1,381,295.28x = 900,691,487,076.83
  5. Step 5: Solve for x
    x = 900,691,487,076.83/1,381,295.28
  6. Step 6: Final answer
    x = 652,062.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.