Home / 1,407,220.86-1,942,173.21-891,022.74

Finding the Fourth Proportional to 1,407,220.86, 1,942,173.21 and 891,022.74

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Solution

The fourth proportional to 1,407,220.86, 1,942,173.21 and 891,022.74 is: 1,229,743.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,220.86 : 1,942,173.21 = 891,022.74 : x
  2. Step 2: Convert to fraction form
    1,407,220.86/1,942,173.21 = 891,022.74/x
  3. Step 3: Cross multiply
    1,407,220.86x = 1,942,173.21 × 891,022.74
  4. Step 4: Simplify right side
    1,407,220.86x = 1,730,520,495,128.80
  5. Step 5: Solve for x
    x = 1,730,520,495,128.80/1,407,220.86
  6. Step 6: Final answer
    x = 1,229,743.35

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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.