Home / 1,145,545.20-1,716,762.60-812,732.40

Finding the Fourth Proportional to 1,145,545.20, 1,716,762.60 and 812,732.40

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Solution

The fourth proportional to 1,145,545.20, 1,716,762.60 and 812,732.40 is: 1,217,995.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,545.20 : 1,716,762.60 = 812,732.40 : x
  2. Step 2: Convert to fraction form
    1,145,545.20/1,716,762.60 = 812,732.40/x
  3. Step 3: Cross multiply
    1,145,545.20x = 1,716,762.60 × 812,732.40
  4. Step 4: Simplify right side
    1,145,545.20x = 1,395,268,588,128.24
  5. Step 5: Solve for x
    x = 1,395,268,588,128.24/1,145,545.20
  6. Step 6: Final answer
    x = 1,217,995.23

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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.