Home / 1,321,341.48-1,982,307.56-422,837.15

Finding the Fourth Proportional to 1,321,341.48, 1,982,307.56 and 422,837.15

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Solution

The fourth proportional to 1,321,341.48, 1,982,307.56 and 422,837.15 is: 634,350.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,341.48 : 1,982,307.56 = 422,837.15 : x
  2. Step 2: Convert to fraction form
    1,321,341.48/1,982,307.56 = 422,837.15/x
  3. Step 3: Cross multiply
    1,321,341.48x = 1,982,307.56 × 422,837.15
  4. Step 4: Simplify right side
    1,321,341.48x = 838,193,267,068.13
  5. Step 5: Solve for x
    x = 838,193,267,068.13/1,321,341.48
  6. Step 6: Final answer
    x = 634,350.23

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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.