Home / 781,869.52-1,079,095.98-495,416.44

Finding the Fourth Proportional to 781,869.52, 1,079,095.98 and 495,416.44

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Solution

The fourth proportional to 781,869.52, 1,079,095.98 and 495,416.44 is: 683,748.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,869.52 : 1,079,095.98 = 495,416.44 : x
  2. Step 2: Convert to fraction form
    781,869.52/1,079,095.98 = 495,416.44/x
  3. Step 3: Cross multiply
    781,869.52x = 1,079,095.98 × 495,416.44
  4. Step 4: Simplify right side
    781,869.52x = 534,601,888,829.91
  5. Step 5: Solve for x
    x = 534,601,888,829.91/781,869.52
  6. Step 6: Final answer
    x = 683,748.22

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1.5x scale

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.