Home / 805,315.60-1,207,205.40-299,741.20

Finding the Fourth Proportional to 805,315.60, 1,207,205.40 and 299,741.20

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Solution

The fourth proportional to 805,315.60, 1,207,205.40 and 299,741.20 is: 449,325.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,315.60 : 1,207,205.40 = 299,741.20 : x
  2. Step 2: Convert to fraction form
    805,315.60/1,207,205.40 = 299,741.20/x
  3. Step 3: Cross multiply
    805,315.60x = 1,207,205.40 × 299,741.20
  4. Step 4: Simplify right side
    805,315.60x = 361,849,195,242.48
  5. Step 5: Solve for x
    x = 361,849,195,242.48/805,315.60
  6. Step 6: Final answer
    x = 449,325.95

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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.