Home / 860,144.34-1,187,039.70-478,177.50

Finding the Fourth Proportional to 860,144.34, 1,187,039.70 and 478,177.50

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Solution

The fourth proportional to 860,144.34, 1,187,039.70 and 478,177.50 is: 659,907.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,144.34 : 1,187,039.70 = 478,177.50 : x
  2. Step 2: Convert to fraction form
    860,144.34/1,187,039.70 = 478,177.50/x
  3. Step 3: Cross multiply
    860,144.34x = 1,187,039.70 × 478,177.50
  4. Step 4: Simplify right side
    860,144.34x = 567,615,676,146.75
  5. Step 5: Solve for x
    x = 567,615,676,146.75/860,144.34
  6. Step 6: Final answer
    x = 659,907.47

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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.