Home / 1,549,461.20-2,138,254.34-861,111.45

Finding the Fourth Proportional to 1,549,461.20, 2,138,254.34 and 861,111.45

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Solution

The fourth proportional to 1,549,461.20, 2,138,254.34 and 861,111.45 is: 1,188,332.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549,461.20 : 2,138,254.34 = 861,111.45 : x
  2. Step 2: Convert to fraction form
    1,549,461.20/2,138,254.34 = 861,111.45/x
  3. Step 3: Cross multiply
    1,549,461.20x = 2,138,254.34 × 861,111.45
  4. Step 4: Simplify right side
    1,549,461.20x = 1,841,275,290,880.64
  5. Step 5: Solve for x
    x = 1,841,275,290,880.64/1,549,461.20
  6. Step 6: Final answer
    x = 1,188,332.63

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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.