Home / 1,487,984.80-2,231,804.40-423,191.20

Finding the Fourth Proportional to 1,487,984.80, 2,231,804.40 and 423,191.20

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Solution

The fourth proportional to 1,487,984.80, 2,231,804.40 and 423,191.20 is: 634,737.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,984.80 : 2,231,804.40 = 423,191.20 : x
  2. Step 2: Convert to fraction form
    1,487,984.80/2,231,804.40 = 423,191.20/x
  3. Step 3: Cross multiply
    1,487,984.80x = 2,231,804.40 × 423,191.20
  4. Step 4: Simplify right side
    1,487,984.80x = 944,479,982,201.28
  5. Step 5: Solve for x
    x = 944,479,982,201.28/1,487,984.80
  6. Step 6: Final answer
    x = 634,737.65

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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.