Home / 860,853.80-1,291,280.70-577,418.60

Finding the Fourth Proportional to 860,853.80, 1,291,280.70 and 577,418.60

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Solution

The fourth proportional to 860,853.80, 1,291,280.70 and 577,418.60 is: 866,127.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,853.80 : 1,291,280.70 = 577,418.60 : x
  2. Step 2: Convert to fraction form
    860,853.80/1,291,280.70 = 577,418.60/x
  3. Step 3: Cross multiply
    860,853.80x = 1,291,280.70 × 577,418.60
  4. Step 4: Simplify right side
    860,853.80x = 745,609,494,001.02
  5. Step 5: Solve for x
    x = 745,609,494,001.02/860,853.80
  6. Step 6: Final answer
    x = 866,127.90

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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.