Home / 807,000.80-1,210,501.20-719,909.60

Finding the Fourth Proportional to 807,000.80, 1,210,501.20 and 719,909.60

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Solution

The fourth proportional to 807,000.80, 1,210,501.20 and 719,909.60 is: 1,079,864.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,000.80 : 1,210,501.20 = 719,909.60 : x
  2. Step 2: Convert to fraction form
    807,000.80/1,210,501.20 = 719,909.60/x
  3. Step 3: Cross multiply
    807,000.80x = 1,210,501.20 × 719,909.60
  4. Step 4: Simplify right side
    807,000.80x = 871,451,434,691.52
  5. Step 5: Solve for x
    x = 871,451,434,691.52/807,000.80
  6. Step 6: Final answer
    x = 1,079,864.40

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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.