Home / 920,082.04-1,380,178.20-288,995.86

Finding the Fourth Proportional to 920,082.04, 1,380,178.20 and 288,995.86

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Solution

The fourth proportional to 920,082.04, 1,380,178.20 and 288,995.86 is: 433,511.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,082.04 : 1,380,178.20 = 288,995.86 : x
  2. Step 2: Convert to fraction form
    920,082.04/1,380,178.20 = 288,995.86/x
  3. Step 3: Cross multiply
    920,082.04x = 1,380,178.20 × 288,995.86
  4. Step 4: Simplify right side
    920,082.04x = 398,865,785,862.25
  5. Step 5: Solve for x
    x = 398,865,785,862.25/920,082.04
  6. Step 6: Final answer
    x = 433,511.11

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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.