Home / 720,965.80-1,079,181.18-495,003.88

Finding the Fourth Proportional to 720,965.80, 1,079,181.18 and 495,003.88

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Solution

The fourth proportional to 720,965.80, 1,079,181.18 and 495,003.88 is: 740,948.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,965.80 : 1,079,181.18 = 495,003.88 : x
  2. Step 2: Convert to fraction form
    720,965.80/1,079,181.18 = 495,003.88/x
  3. Step 3: Cross multiply
    720,965.80x = 1,079,181.18 × 495,003.88
  4. Step 4: Simplify right side
    720,965.80x = 534,198,871,322.98
  5. Step 5: Solve for x
    x = 534,198,871,322.98/720,965.80
  6. Step 6: Final answer
    x = 740,948.98

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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.