Home / 817,492.40-1,128,237.72-495,193.04

Finding the Fourth Proportional to 817,492.40, 1,128,237.72 and 495,193.04

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Solution

The fourth proportional to 817,492.40, 1,128,237.72 and 495,193.04 is: 683,425.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,492.40 : 1,128,237.72 = 495,193.04 : x
  2. Step 2: Convert to fraction form
    817,492.40/1,128,237.72 = 495,193.04/x
  3. Step 3: Cross multiply
    817,492.40x = 1,128,237.72 × 495,193.04
  4. Step 4: Simplify right side
    817,492.40x = 558,695,466,409.47
  5. Step 5: Solve for x
    x = 558,695,466,409.47/817,492.40
  6. Step 6: Final answer
    x = 683,425.88

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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.