Home / 1,128,112.90-1,692,686.10-488,612.24

Finding the Fourth Proportional to 1,128,112.90, 1,692,686.10 and 488,612.24

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Solution

The fourth proportional to 1,128,112.90, 1,692,686.10 and 488,612.24 is: 733,142.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,112.90 : 1,692,686.10 = 488,612.24 : x
  2. Step 2: Convert to fraction form
    1,128,112.90/1,692,686.10 = 488,612.24/x
  3. Step 3: Cross multiply
    1,128,112.90x = 1,692,686.10 × 488,612.24
  4. Step 4: Simplify right side
    1,128,112.90x = 827,067,146,937.86
  5. Step 5: Solve for x
    x = 827,067,146,937.86/1,128,112.90
  6. Step 6: Final answer
    x = 733,142.18

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1.5x scale

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.