Home / 819,140.52-1,229,264.04-286,666.20

Finding the Fourth Proportional to 819,140.52, 1,229,264.04 and 286,666.20

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Solution

The fourth proportional to 819,140.52, 1,229,264.04 and 286,666.20 is: 430,192.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,140.52 : 1,229,264.04 = 286,666.20 : x
  2. Step 2: Convert to fraction form
    819,140.52/1,229,264.04 = 286,666.20/x
  3. Step 3: Cross multiply
    819,140.52x = 1,229,264.04 × 286,666.20
  4. Step 4: Simplify right side
    819,140.52x = 352,388,451,143.45
  5. Step 5: Solve for x
    x = 352,388,451,143.45/819,140.52
  6. Step 6: Final answer
    x = 430,192.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.