Home / 1,917,740.25-2,877,001.20-780,492.15

Finding the Fourth Proportional to 1,917,740.25, 2,877,001.20 and 780,492.15

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Solution

The fourth proportional to 1,917,740.25, 2,877,001.20 and 780,492.15 is: 1,170,897.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,740.25 : 2,877,001.20 = 780,492.15 : x
  2. Step 2: Convert to fraction form
    1,917,740.25/2,877,001.20 = 780,492.15/x
  3. Step 3: Cross multiply
    1,917,740.25x = 2,877,001.20 × 780,492.15
  4. Step 4: Simplify right side
    1,917,740.25x = 2,245,476,852,140.58
  5. Step 5: Solve for x
    x = 2,245,476,852,140.58/1,917,740.25
  6. Step 6: Final answer
    x = 1,170,897.29

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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.