Home / 1,138,332.72-1,570,998.54-629,133.48

Finding the Fourth Proportional to 1,138,332.72, 1,570,998.54 and 629,133.48

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Solution

The fourth proportional to 1,138,332.72, 1,570,998.54 and 629,133.48 is: 868,259.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,332.72 : 1,570,998.54 = 629,133.48 : x
  2. Step 2: Convert to fraction form
    1,138,332.72/1,570,998.54 = 629,133.48/x
  3. Step 3: Cross multiply
    1,138,332.72x = 1,570,998.54 × 629,133.48
  4. Step 4: Simplify right side
    1,138,332.72x = 988,367,778,545.12
  5. Step 5: Solve for x
    x = 988,367,778,545.12/1,138,332.72
  6. Step 6: Final answer
    x = 868,259.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.