Home / 912,423.60-1,366,043.40-862,772.40

Finding the Fourth Proportional to 912,423.60, 1,366,043.40 and 862,772.40

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Solution

The fourth proportional to 912,423.60, 1,366,043.40 and 862,772.40 is: 1,291,707.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,423.60 : 1,366,043.40 = 862,772.40 : x
  2. Step 2: Convert to fraction form
    912,423.60/1,366,043.40 = 862,772.40/x
  3. Step 3: Cross multiply
    912,423.60x = 1,366,043.40 × 862,772.40
  4. Step 4: Simplify right side
    912,423.60x = 1,178,584,542,722.16
  5. Step 5: Solve for x
    x = 1,178,584,542,722.16/912,423.60
  6. Step 6: Final answer
    x = 1,291,707.65

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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.