Home / 817,488.40-1,128,232.20-495,189.04

Finding the Fourth Proportional to 817,488.40, 1,128,232.20 and 495,189.04

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Solution

The fourth proportional to 817,488.40, 1,128,232.20 and 495,189.04 is: 683,420.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,488.40 : 1,128,232.20 = 495,189.04 : x
  2. Step 2: Convert to fraction form
    817,488.40/1,128,232.20 = 495,189.04/x
  3. Step 3: Cross multiply
    817,488.40x = 1,128,232.20 × 495,189.04
  4. Step 4: Simplify right side
    817,488.40x = 558,688,220,015.09
  5. Step 5: Solve for x
    x = 558,688,220,015.09/817,488.40
  6. Step 6: Final answer
    x = 683,420.36

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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.