Home / 1,389,126.80-2,083,690.20-442,593.20

Finding the Fourth Proportional to 1,389,126.80, 2,083,690.20 and 442,593.20

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Solution

The fourth proportional to 1,389,126.80, 2,083,690.20 and 442,593.20 is: 663,889.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,126.80 : 2,083,690.20 = 442,593.20 : x
  2. Step 2: Convert to fraction form
    1,389,126.80/2,083,690.20 = 442,593.20/x
  3. Step 3: Cross multiply
    1,389,126.80x = 2,083,690.20 × 442,593.20
  4. Step 4: Simplify right side
    1,389,126.80x = 922,227,113,426.64
  5. Step 5: Solve for x
    x = 922,227,113,426.64/1,389,126.80
  6. Step 6: Final answer
    x = 663,889.80

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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.