Home / 1,488,708.90-2,227,158.45-1,291,222.80

Finding the Fourth Proportional to 1,488,708.90, 2,227,158.45 and 1,291,222.80

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Solution

The fourth proportional to 1,488,708.90, 2,227,158.45 and 1,291,222.80 is: 1,931,712.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,708.90 : 2,227,158.45 = 1,291,222.80 : x
  2. Step 2: Convert to fraction form
    1,488,708.90/2,227,158.45 = 1,291,222.80/x
  3. Step 3: Cross multiply
    1,488,708.90x = 2,227,158.45 × 1,291,222.80
  4. Step 4: Simplify right side
    1,488,708.90x = 2,875,757,769,852.66
  5. Step 5: Solve for x
    x = 2,875,757,769,852.66/1,488,708.90
  6. Step 6: Final answer
    x = 1,931,712.62

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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.