Home / 780,700.40-1,170,253.01-443,027.87

Finding the Fourth Proportional to 780,700.40, 1,170,253.01 and 443,027.87

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Solution

The fourth proportional to 780,700.40, 1,170,253.01 and 443,027.87 is: 664,089.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,700.40 : 1,170,253.01 = 443,027.87 : x
  2. Step 2: Convert to fraction form
    780,700.40/1,170,253.01 = 443,027.87/x
  3. Step 3: Cross multiply
    780,700.40x = 1,170,253.01 × 443,027.87
  4. Step 4: Simplify right side
    780,700.40x = 518,454,693,637.69
  5. Step 5: Solve for x
    x = 518,454,693,637.69/780,700.40
  6. Step 6: Final answer
    x = 664,089.19

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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.