Home / 1,055,780.20-1,583,670.30-257,055.40

Finding the Fourth Proportional to 1,055,780.20, 1,583,670.30 and 257,055.40

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Solution

The fourth proportional to 1,055,780.20, 1,583,670.30 and 257,055.40 is: 385,583.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,780.20 : 1,583,670.30 = 257,055.40 : x
  2. Step 2: Convert to fraction form
    1,055,780.20/1,583,670.30 = 257,055.40/x
  3. Step 3: Cross multiply
    1,055,780.20x = 1,583,670.30 × 257,055.40
  4. Step 4: Simplify right side
    1,055,780.20x = 407,091,002,434.62
  5. Step 5: Solve for x
    x = 407,091,002,434.62/1,055,780.20
  6. Step 6: Final answer
    x = 385,583.10

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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.