Home / 1,488,707.40-2,227,156.20-1,291,221.30

Finding the Fourth Proportional to 1,488,707.40, 2,227,156.20 and 1,291,221.30

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Solution

The fourth proportional to 1,488,707.40, 2,227,156.20 and 1,291,221.30 is: 1,931,710.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,707.40 : 2,227,156.20 = 1,291,221.30 : x
  2. Step 2: Convert to fraction form
    1,488,707.40/2,227,156.20 = 1,291,221.30/x
  3. Step 3: Cross multiply
    1,488,707.40x = 2,227,156.20 × 1,291,221.30
  4. Step 4: Simplify right side
    1,488,707.40x = 2,875,751,523,867.06
  5. Step 5: Solve for x
    x = 2,875,751,523,867.06/1,488,707.40
  6. Step 6: Final answer
    x = 1,931,710.37

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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.