Home / 1,069,456.80-1,603,407.60-438,045.60

Finding the Fourth Proportional to 1,069,456.80, 1,603,407.60 and 438,045.60

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Solution

The fourth proportional to 1,069,456.80, 1,603,407.60 and 438,045.60 is: 656,749.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,456.80 : 1,603,407.60 = 438,045.60 : x
  2. Step 2: Convert to fraction form
    1,069,456.80/1,603,407.60 = 438,045.60/x
  3. Step 3: Cross multiply
    1,069,456.80x = 1,603,407.60 × 438,045.60
  4. Step 4: Simplify right side
    1,069,456.80x = 702,365,644,186.56
  5. Step 5: Solve for x
    x = 702,365,644,186.56/1,069,456.80
  6. Step 6: Final answer
    x = 656,749.90

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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.