Home / 787,298.80-1,180,948.20-288,857.20

Finding the Fourth Proportional to 787,298.80, 1,180,948.20 and 288,857.20

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Solution

The fourth proportional to 787,298.80, 1,180,948.20 and 288,857.20 is: 433,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,298.80 : 1,180,948.20 = 288,857.20 : x
  2. Step 2: Convert to fraction form
    787,298.80/1,180,948.20 = 288,857.20/x
  3. Step 3: Cross multiply
    787,298.80x = 1,180,948.20 × 288,857.20
  4. Step 4: Simplify right side
    787,298.80x = 341,125,390,397.04
  5. Step 5: Solve for x
    x = 341,125,390,397.04/787,298.80
  6. Step 6: Final answer
    x = 433,285.80

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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.