Home / 1,230,245.80-1,845,368.70-911,381.20

Finding the Fourth Proportional to 1,230,245.80, 1,845,368.70 and 911,381.20

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Solution

The fourth proportional to 1,230,245.80, 1,845,368.70 and 911,381.20 is: 1,367,071.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,245.80 : 1,845,368.70 = 911,381.20 : x
  2. Step 2: Convert to fraction form
    1,230,245.80/1,845,368.70 = 911,381.20/x
  3. Step 3: Cross multiply
    1,230,245.80x = 1,845,368.70 × 911,381.20
  4. Step 4: Simplify right side
    1,230,245.80x = 1,681,834,340,248.44
  5. Step 5: Solve for x
    x = 1,681,834,340,248.44/1,230,245.80
  6. Step 6: Final answer
    x = 1,367,071.80

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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.