Home / 1,145,540.40-1,718,294.40-387,220.20

Finding the Fourth Proportional to 1,145,540.40, 1,718,294.40 and 387,220.20

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Solution

The fourth proportional to 1,145,540.40, 1,718,294.40 and 387,220.20 is: 580,824.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,540.40 : 1,718,294.40 = 387,220.20 : x
  2. Step 2: Convert to fraction form
    1,145,540.40/1,718,294.40 = 387,220.20/x
  3. Step 3: Cross multiply
    1,145,540.40x = 1,718,294.40 × 387,220.20
  4. Step 4: Simplify right side
    1,145,540.40x = 665,358,301,226.88
  5. Step 5: Solve for x
    x = 665,358,301,226.88/1,145,540.40
  6. Step 6: Final answer
    x = 580,824.82

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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.