Home / 1,317,938.61-1,976,951.46-453,364.86

Finding the Fourth Proportional to 1,317,938.61, 1,976,951.46 and 453,364.86

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Solution

The fourth proportional to 1,317,938.61, 1,976,951.46 and 453,364.86 is: 680,062.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,938.61 : 1,976,951.46 = 453,364.86 : x
  2. Step 2: Convert to fraction form
    1,317,938.61/1,976,951.46 = 453,364.86/x
  3. Step 3: Cross multiply
    1,317,938.61x = 1,976,951.46 × 453,364.86
  4. Step 4: Simplify right side
    1,317,938.61x = 896,280,321,889.70
  5. Step 5: Solve for x
    x = 896,280,321,889.70/1,317,938.61
  6. Step 6: Final answer
    x = 680,062.27

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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.