Home / 1,158,877.80-1,738,316.70-780,964.20

Finding the Fourth Proportional to 1,158,877.80, 1,738,316.70 and 780,964.20

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Solution

The fourth proportional to 1,158,877.80, 1,738,316.70 and 780,964.20 is: 1,171,446.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,877.80 : 1,738,316.70 = 780,964.20 : x
  2. Step 2: Convert to fraction form
    1,158,877.80/1,738,316.70 = 780,964.20/x
  3. Step 3: Cross multiply
    1,158,877.80x = 1,738,316.70 × 780,964.20
  4. Step 4: Simplify right side
    1,158,877.80x = 1,357,563,110,962.14
  5. Step 5: Solve for x
    x = 1,357,563,110,962.14/1,158,877.80
  6. Step 6: Final answer
    x = 1,171,446.30

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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.