Home / 1,226,738.40-1,840,798.80-478,687.20

Finding the Fourth Proportional to 1,226,738.40, 1,840,798.80 and 478,687.20

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Solution

The fourth proportional to 1,226,738.40, 1,840,798.80 and 478,687.20 is: 718,300.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,738.40 : 1,840,798.80 = 478,687.20 : x
  2. Step 2: Convert to fraction form
    1,226,738.40/1,840,798.80 = 478,687.20/x
  3. Step 3: Cross multiply
    1,226,738.40x = 1,840,798.80 × 478,687.20
  4. Step 4: Simplify right side
    1,226,738.40x = 881,166,823,335.36
  5. Step 5: Solve for x
    x = 881,166,823,335.36/1,226,738.40
  6. Step 6: Final answer
    x = 718,300.51

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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.