Home / 805,121.60-1,206,914.40-299,547.20

Finding the Fourth Proportional to 805,121.60, 1,206,914.40 and 299,547.20

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Solution

The fourth proportional to 805,121.60, 1,206,914.40 and 299,547.20 is: 449,035.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,121.60 : 1,206,914.40 = 299,547.20 : x
  2. Step 2: Convert to fraction form
    805,121.60/1,206,914.40 = 299,547.20/x
  3. Step 3: Cross multiply
    805,121.60x = 1,206,914.40 × 299,547.20
  4. Step 4: Simplify right side
    805,121.60x = 361,527,829,159.68
  5. Step 5: Solve for x
    x = 361,527,829,159.68/805,121.60
  6. Step 6: Final answer
    x = 449,035.06

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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.