Home / 1,079,018.20-1,488,130.95-649,218.03

Finding the Fourth Proportional to 1,079,018.20, 1,488,130.95 and 649,218.03

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Solution

The fourth proportional to 1,079,018.20, 1,488,130.95 and 649,218.03 is: 895,370.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,018.20 : 1,488,130.95 = 649,218.03 : x
  2. Step 2: Convert to fraction form
    1,079,018.20/1,488,130.95 = 649,218.03/x
  3. Step 3: Cross multiply
    1,079,018.20x = 1,488,130.95 × 649,218.03
  4. Step 4: Simplify right side
    1,079,018.20x = 966,121,443,741.03
  5. Step 5: Solve for x
    x = 966,121,443,741.03/1,079,018.20
  6. Step 6: Final answer
    x = 895,370.85

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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.