Home / 1,488,681.60-2,233,022.40-921,811.20

Finding the Fourth Proportional to 1,488,681.60, 2,233,022.40 and 921,811.20

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Solution

The fourth proportional to 1,488,681.60, 2,233,022.40 and 921,811.20 is: 1,382,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,681.60 : 2,233,022.40 = 921,811.20 : x
  2. Step 2: Convert to fraction form
    1,488,681.60/2,233,022.40 = 921,811.20/x
  3. Step 3: Cross multiply
    1,488,681.60x = 2,233,022.40 × 921,811.20
  4. Step 4: Simplify right side
    1,488,681.60x = 2,058,425,058,170.88
  5. Step 5: Solve for x
    x = 2,058,425,058,170.88/1,488,681.60
  6. Step 6: Final answer
    x = 1,382,716.80

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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.