Home / 810,488.78-1,118,500.23-442,957.85

Finding the Fourth Proportional to 810,488.78, 1,118,500.23 and 442,957.85

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Solution

The fourth proportional to 810,488.78, 1,118,500.23 and 442,957.85 is: 611,295.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,488.78 : 1,118,500.23 = 442,957.85 : x
  2. Step 2: Convert to fraction form
    810,488.78/1,118,500.23 = 442,957.85/x
  3. Step 3: Cross multiply
    810,488.78x = 1,118,500.23 × 442,957.85
  4. Step 4: Simplify right side
    810,488.78x = 495,448,457,105.31
  5. Step 5: Solve for x
    x = 495,448,457,105.31/810,488.78
  6. Step 6: Final answer
    x = 611,295.89

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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.