Home / 787,652.90-1,182,904.95-689,675.30

Finding the Fourth Proportional to 787,652.90, 1,182,904.95 and 689,675.30

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Solution

The fourth proportional to 787,652.90, 1,182,904.95 and 689,675.30 is: 1,035,761.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,652.90 : 1,182,904.95 = 689,675.30 : x
  2. Step 2: Convert to fraction form
    787,652.90/1,182,904.95 = 689,675.30/x
  3. Step 3: Cross multiply
    787,652.90x = 1,182,904.95 × 689,675.30
  4. Step 4: Simplify right side
    787,652.90x = 815,820,326,262.74
  5. Step 5: Solve for x
    x = 815,820,326,262.74/787,652.90
  6. Step 6: Final answer
    x = 1,035,761.22

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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.