Home / 2,986,429.20-4,479,643.80-991,885.20

Finding the Fourth Proportional to 2,986,429.20, 4,479,643.80 and 991,885.20

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Solution

The fourth proportional to 2,986,429.20, 4,479,643.80 and 991,885.20 is: 1,487,827.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986,429.20 : 4,479,643.80 = 991,885.20 : x
  2. Step 2: Convert to fraction form
    2,986,429.20/4,479,643.80 = 991,885.20/x
  3. Step 3: Cross multiply
    2,986,429.20x = 4,479,643.80 × 991,885.20
  4. Step 4: Simplify right side
    2,986,429.20x = 4,443,292,386,491.76
  5. Step 5: Solve for x
    x = 4,443,292,386,491.76/2,986,429.20
  6. Step 6: Final answer
    x = 1,487,827.80

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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.