Home / 1,539,209.28-2,124,111.64-860,145.76

Finding the Fourth Proportional to 1,539,209.28, 2,124,111.64 and 860,145.76

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Solution

The fourth proportional to 1,539,209.28, 2,124,111.64 and 860,145.76 is: 1,187,002.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,209.28 : 2,124,111.64 = 860,145.76 : x
  2. Step 2: Convert to fraction form
    1,539,209.28/2,124,111.64 = 860,145.76/x
  3. Step 3: Cross multiply
    1,539,209.28x = 2,124,111.64 × 860,145.76
  4. Step 4: Simplify right side
    1,539,209.28x = 1,827,045,620,912.65
  5. Step 5: Solve for x
    x = 1,827,045,620,912.65/1,539,209.28
  6. Step 6: Final answer
    x = 1,187,002.73

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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.