Home / 860,763.96-1,187,836.78-478,782.52

Finding the Fourth Proportional to 860,763.96, 1,187,836.78 and 478,782.52

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Solution

The fourth proportional to 860,763.96, 1,187,836.78 and 478,782.52 is: 660,710.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,763.96 : 1,187,836.78 = 478,782.52 : x
  2. Step 2: Convert to fraction form
    860,763.96/1,187,836.78 = 478,782.52/x
  3. Step 3: Cross multiply
    860,763.96x = 1,187,836.78 × 478,782.52
  4. Step 4: Simplify right side
    860,763.96x = 568,715,486,877.09
  5. Step 5: Solve for x
    x = 568,715,486,877.09/860,763.96
  6. Step 6: Final answer
    x = 660,710.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.