Home / 817,810.38-1,128,539.25-495,500.04

Finding the Fourth Proportional to 817,810.38, 1,128,539.25 and 495,500.04

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Solution

The fourth proportional to 817,810.38, 1,128,539.25 and 495,500.04 is: 683,766.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,810.38 : 1,128,539.25 = 495,500.04 : x
  2. Step 2: Convert to fraction form
    817,810.38/1,128,539.25 = 495,500.04/x
  3. Step 3: Cross multiply
    817,810.38x = 1,128,539.25 × 495,500.04
  4. Step 4: Simplify right side
    817,810.38x = 559,191,243,516.57
  5. Step 5: Solve for x
    x = 559,191,243,516.57/817,810.38
  6. Step 6: Final answer
    x = 683,766.38

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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.