Home / 1,420,034.20-2,130,051.30-860,162.20

Finding the Fourth Proportional to 1,420,034.20, 2,130,051.30 and 860,162.20

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Solution

The fourth proportional to 1,420,034.20, 2,130,051.30 and 860,162.20 is: 1,290,243.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,034.20 : 2,130,051.30 = 860,162.20 : x
  2. Step 2: Convert to fraction form
    1,420,034.20/2,130,051.30 = 860,162.20/x
  3. Step 3: Cross multiply
    1,420,034.20x = 2,130,051.30 × 860,162.20
  4. Step 4: Simplify right side
    1,420,034.20x = 1,832,189,612,320.86
  5. Step 5: Solve for x
    x = 1,832,189,612,320.86/1,420,034.20
  6. Step 6: Final answer
    x = 1,290,243.30

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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.