Home / 918,275.80-1,377,413.70-815,924.20

Finding the Fourth Proportional to 918,275.80, 1,377,413.70 and 815,924.20

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Solution

The fourth proportional to 918,275.80, 1,377,413.70 and 815,924.20 is: 1,223,886.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,275.80 : 1,377,413.70 = 815,924.20 : x
  2. Step 2: Convert to fraction form
    918,275.80/1,377,413.70 = 815,924.20/x
  3. Step 3: Cross multiply
    918,275.80x = 1,377,413.70 × 815,924.20
  4. Step 4: Simplify right side
    918,275.80x = 1,123,865,171,241.54
  5. Step 5: Solve for x
    x = 1,123,865,171,241.54/918,275.80
  6. Step 6: Final answer
    x = 1,223,886.30

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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.