Home / 1,225,920.40-1,838,005.80-551,449.60

Finding the Fourth Proportional to 1,225,920.40, 1,838,005.80 and 551,449.60

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Solution

The fourth proportional to 1,225,920.40, 1,838,005.80 and 551,449.60 is: 826,780.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,920.40 : 1,838,005.80 = 551,449.60 : x
  2. Step 2: Convert to fraction form
    1,225,920.40/1,838,005.80 = 551,449.60/x
  3. Step 3: Cross multiply
    1,225,920.40x = 1,838,005.80 × 551,449.60
  4. Step 4: Simplify right side
    1,225,920.40x = 1,013,567,563,207.68
  5. Step 5: Solve for x
    x = 1,013,567,563,207.68/1,225,920.40
  6. Step 6: Final answer
    x = 826,780.89

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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.