Home / 985,195.78-1,359,569.46-532,486.78

Finding the Fourth Proportional to 985,195.78, 1,359,569.46 and 532,486.78

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Solution

The fourth proportional to 985,195.78, 1,359,569.46 and 532,486.78 is: 734,831.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,195.78 : 1,359,569.46 = 532,486.78 : x
  2. Step 2: Convert to fraction form
    985,195.78/1,359,569.46 = 532,486.78/x
  3. Step 3: Cross multiply
    985,195.78x = 1,359,569.46 × 532,486.78
  4. Step 4: Simplify right side
    985,195.78x = 723,952,763,941.74
  5. Step 5: Solve for x
    x = 723,952,763,941.74/985,195.78
  6. Step 6: Final answer
    x = 734,831.37

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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.