Home / 971,643.20-1,456,831.20-872,110.40

Finding the Fourth Proportional to 971,643.20, 1,456,831.20 and 872,110.40

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Solution

The fourth proportional to 971,643.20, 1,456,831.20 and 872,110.40 is: 1,307,596.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,643.20 : 1,456,831.20 = 872,110.40 : x
  2. Step 2: Convert to fraction form
    971,643.20/1,456,831.20 = 872,110.40/x
  3. Step 3: Cross multiply
    971,643.20x = 1,456,831.20 × 872,110.40
  4. Step 4: Simplify right side
    971,643.20x = 1,270,517,640,564.48
  5. Step 5: Solve for x
    x = 1,270,517,640,564.48/971,643.20
  6. Step 6: Final answer
    x = 1,307,596.90

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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.