Home / 1,220,776.76-1,828,175.38-860,061.18

Finding the Fourth Proportional to 1,220,776.76, 1,828,175.38 and 860,061.18

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Solution

The fourth proportional to 1,220,776.76, 1,828,175.38 and 860,061.18 is: 1,287,985.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,776.76 : 1,828,175.38 = 860,061.18 : x
  2. Step 2: Convert to fraction form
    1,220,776.76/1,828,175.38 = 860,061.18/x
  3. Step 3: Cross multiply
    1,220,776.76x = 1,828,175.38 × 860,061.18
  4. Step 4: Simplify right side
    1,220,776.76x = 1,572,342,672,419.60
  5. Step 5: Solve for x
    x = 1,572,342,672,419.60/1,220,776.76
  6. Step 6: Final answer
    x = 1,287,985.42

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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.