Home / 1,143,690.20-1,578,262.02-660,239

Finding the Fourth Proportional to 1,143,690.20, 1,578,262.02 and 660,239

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Solution

The fourth proportional to 1,143,690.20, 1,578,262.02 and 660,239 is: 911,112.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,690.20 : 1,578,262.02 = 660,239 : x
  2. Step 2: Convert to fraction form
    1,143,690.20/1,578,262.02 = 660,239/x
  3. Step 3: Cross multiply
    1,143,690.20x = 1,578,262.02 × 660,239
  4. Step 4: Simplify right side
    1,143,690.20x = 1,042,030,137,822.78
  5. Step 5: Solve for x
    x = 1,042,030,137,822.78/1,143,690.20
  6. Step 6: Final answer
    x = 911,112.24

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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.