Home / 1,170,543.20-1,615,480.71-661,278.38

Finding the Fourth Proportional to 1,170,543.20, 1,615,480.71 and 661,278.38

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Solution

The fourth proportional to 1,170,543.20, 1,615,480.71 and 661,278.38 is: 912,638.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,543.20 : 1,615,480.71 = 661,278.38 : x
  2. Step 2: Convert to fraction form
    1,170,543.20/1,615,480.71 = 661,278.38/x
  3. Step 3: Cross multiply
    1,170,543.20x = 1,615,480.71 × 661,278.38
  4. Step 4: Simplify right side
    1,170,543.20x = 1,068,282,466,830.05
  5. Step 5: Solve for x
    x = 1,068,282,466,830.05/1,170,543.20
  6. Step 6: Final answer
    x = 912,638.22

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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.