Home / 1,488,003.20-2,232,004.80-890,806.40

Finding the Fourth Proportional to 1,488,003.20, 2,232,004.80 and 890,806.40

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Solution

The fourth proportional to 1,488,003.20, 2,232,004.80 and 890,806.40 is: 1,336,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,003.20 : 2,232,004.80 = 890,806.40 : x
  2. Step 2: Convert to fraction form
    1,488,003.20/2,232,004.80 = 890,806.40/x
  3. Step 3: Cross multiply
    1,488,003.20x = 2,232,004.80 × 890,806.40
  4. Step 4: Simplify right side
    1,488,003.20x = 1,988,284,160,670.72
  5. Step 5: Solve for x
    x = 1,988,284,160,670.72/1,488,003.20
  6. Step 6: Final answer
    x = 1,336,209.60

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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.