Home / 1,272,962.62-1,909,301.37-326,355.58

Finding the Fourth Proportional to 1,272,962.62, 1,909,301.37 and 326,355.58

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Solution

The fourth proportional to 1,272,962.62, 1,909,301.37 and 326,355.58 is: 489,496.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,962.62 : 1,909,301.37 = 326,355.58 : x
  2. Step 2: Convert to fraction form
    1,272,962.62/1,909,301.37 = 326,355.58/x
  3. Step 3: Cross multiply
    1,272,962.62x = 1,909,301.37 × 326,355.58
  4. Step 4: Simplify right side
    1,272,962.62x = 623,111,156,001.15
  5. Step 5: Solve for x
    x = 623,111,156,001.15/1,272,962.62
  6. Step 6: Final answer
    x = 489,496.82

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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.