Home / 1,078,216.80-1,615,356.90-657,000.60

Finding the Fourth Proportional to 1,078,216.80, 1,615,356.90 and 657,000.60

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Solution

The fourth proportional to 1,078,216.80, 1,615,356.90 and 657,000.60 is: 984,301.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,216.80 : 1,615,356.90 = 657,000.60 : x
  2. Step 2: Convert to fraction form
    1,078,216.80/1,615,356.90 = 657,000.60/x
  3. Step 3: Cross multiply
    1,078,216.80x = 1,615,356.90 × 657,000.60
  4. Step 4: Simplify right side
    1,078,216.80x = 1,061,290,452,514.14
  5. Step 5: Solve for x
    x = 1,061,290,452,514.14/1,078,216.80
  6. Step 6: Final answer
    x = 984,301.54

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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.