Home / 2,818,475.90-4,227,693.60-688,540.40

Finding the Fourth Proportional to 2,818,475.90, 4,227,693.60 and 688,540.40

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Solution

The fourth proportional to 2,818,475.90, 4,227,693.60 and 688,540.40 is: 1,032,805.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818,475.90 : 4,227,693.60 = 688,540.40 : x
  2. Step 2: Convert to fraction form
    2,818,475.90/4,227,693.60 = 688,540.40/x
  3. Step 3: Cross multiply
    2,818,475.90x = 4,227,693.60 × 688,540.40
  4. Step 4: Simplify right side
    2,818,475.90x = 2,910,937,842,421.44
  5. Step 5: Solve for x
    x = 2,910,937,842,421.44/2,818,475.90
  6. Step 6: Final answer
    x = 1,032,805.65

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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.