Home / 815,746.57-1,223,794.95-342,159.01

Finding the Fourth Proportional to 815,746.57, 1,223,794.95 and 342,159.01

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Solution

The fourth proportional to 815,746.57, 1,223,794.95 and 342,159.01 is: 513,311.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,746.57 : 1,223,794.95 = 342,159.01 : x
  2. Step 2: Convert to fraction form
    815,746.57/1,223,794.95 = 342,159.01/x
  3. Step 3: Cross multiply
    815,746.57x = 1,223,794.95 × 342,159.01
  4. Step 4: Simplify right side
    815,746.57x = 418,732,468,535.00
  5. Step 5: Solve for x
    x = 418,732,468,535.00/815,746.57
  6. Step 6: Final answer
    x = 513,311.96

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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.