Home / 1,229,127.20-1,843,690.80-342,663.20

Finding the Fourth Proportional to 1,229,127.20, 1,843,690.80 and 342,663.20

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Solution

The fourth proportional to 1,229,127.20, 1,843,690.80 and 342,663.20 is: 513,994.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,127.20 : 1,843,690.80 = 342,663.20 : x
  2. Step 2: Convert to fraction form
    1,229,127.20/1,843,690.80 = 342,663.20/x
  3. Step 3: Cross multiply
    1,229,127.20x = 1,843,690.80 × 342,663.20
  4. Step 4: Simplify right side
    1,229,127.20x = 631,764,989,338.56
  5. Step 5: Solve for x
    x = 631,764,989,338.56/1,229,127.20
  6. Step 6: Final answer
    x = 513,994.80

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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.