Home / 876,986.60-1,315,998.30-578,330.60

Finding the Fourth Proportional to 876,986.60, 1,315,998.30 and 578,330.60

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Solution

The fourth proportional to 876,986.60, 1,315,998.30 and 578,330.60 is: 867,837.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,986.60 : 1,315,998.30 = 578,330.60 : x
  2. Step 2: Convert to fraction form
    876,986.60/1,315,998.30 = 578,330.60/x
  3. Step 3: Cross multiply
    876,986.60x = 1,315,998.30 × 578,330.60
  4. Step 4: Simplify right side
    876,986.60x = 761,082,086,437.98
  5. Step 5: Solve for x
    x = 761,082,086,437.98/876,986.60
  6. Step 6: Final answer
    x = 867,837.76

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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.