Home / 699,432.30-1,049,148.45-687,768.30

Finding the Fourth Proportional to 699,432.30, 1,049,148.45 and 687,768.30

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Solution

The fourth proportional to 699,432.30, 1,049,148.45 and 687,768.30 is: 1,031,652.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,432.30 : 1,049,148.45 = 687,768.30 : x
  2. Step 2: Convert to fraction form
    699,432.30/1,049,148.45 = 687,768.30/x
  3. Step 3: Cross multiply
    699,432.30x = 1,049,148.45 × 687,768.30
  4. Step 4: Simplify right side
    699,432.30x = 721,571,045,904.14
  5. Step 5: Solve for x
    x = 721,571,045,904.14/699,432.30
  6. Step 6: Final answer
    x = 1,031,652.45

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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.