Home / 1,100,977.48-1,518,990.02-641,988.20

Finding the Fourth Proportional to 1,100,977.48, 1,518,990.02 and 641,988.20

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Solution

The fourth proportional to 1,100,977.48, 1,518,990.02 and 641,988.20 is: 885,734.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,977.48 : 1,518,990.02 = 641,988.20 : x
  2. Step 2: Convert to fraction form
    1,100,977.48/1,518,990.02 = 641,988.20/x
  3. Step 3: Cross multiply
    1,100,977.48x = 1,518,990.02 × 641,988.20
  4. Step 4: Simplify right side
    1,100,977.48x = 975,173,668,757.76
  5. Step 5: Solve for x
    x = 975,173,668,757.76/1,100,977.48
  6. Step 6: Final answer
    x = 885,734.44

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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.