Home / 765,752.80-1,148,629.26-204,772.72

Finding the Fourth Proportional to 765,752.80, 1,148,629.26 and 204,772.72

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Solution

The fourth proportional to 765,752.80, 1,148,629.26 and 204,772.72 is: 307,159.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,752.80 : 1,148,629.26 = 204,772.72 : x
  2. Step 2: Convert to fraction form
    765,752.80/1,148,629.26 = 204,772.72/x
  3. Step 3: Cross multiply
    765,752.80x = 1,148,629.26 × 204,772.72
  4. Step 4: Simplify right side
    765,752.80x = 235,207,937,841.79
  5. Step 5: Solve for x
    x = 235,207,937,841.79/765,752.80
  6. Step 6: Final answer
    x = 307,159.10

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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.