Home / 1,239,801.60-1,859,702.40-441,109.20

Finding the Fourth Proportional to 1,239,801.60, 1,859,702.40 and 441,109.20

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Solution

The fourth proportional to 1,239,801.60, 1,859,702.40 and 441,109.20 is: 661,663.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,801.60 : 1,859,702.40 = 441,109.20 : x
  2. Step 2: Convert to fraction form
    1,239,801.60/1,859,702.40 = 441,109.20/x
  3. Step 3: Cross multiply
    1,239,801.60x = 1,859,702.40 × 441,109.20
  4. Step 4: Simplify right side
    1,239,801.60x = 820,331,837,902.08
  5. Step 5: Solve for x
    x = 820,331,837,902.08/1,239,801.60
  6. Step 6: Final answer
    x = 661,663.80

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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.