Home / 872,092.80-1,308,139.20-374,428.80

Finding the Fourth Proportional to 872,092.80, 1,308,139.20 and 374,428.80

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Solution

The fourth proportional to 872,092.80, 1,308,139.20 and 374,428.80 is: 561,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,092.80 : 1,308,139.20 = 374,428.80 : x
  2. Step 2: Convert to fraction form
    872,092.80/1,308,139.20 = 374,428.80/x
  3. Step 3: Cross multiply
    872,092.80x = 1,308,139.20 × 374,428.80
  4. Step 4: Simplify right side
    872,092.80x = 489,804,990,888.96
  5. Step 5: Solve for x
    x = 489,804,990,888.96/872,092.80
  6. Step 6: Final answer
    x = 561,643.20

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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.