Home / 918,275.60-1,377,413.40-445,008.80

Finding the Fourth Proportional to 918,275.60, 1,377,413.40 and 445,008.80

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Solution

The fourth proportional to 918,275.60, 1,377,413.40 and 445,008.80 is: 667,513.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,275.60 : 1,377,413.40 = 445,008.80 : x
  2. Step 2: Convert to fraction form
    918,275.60/1,377,413.40 = 445,008.80/x
  3. Step 3: Cross multiply
    918,275.60x = 1,377,413.40 × 445,008.80
  4. Step 4: Simplify right side
    918,275.60x = 612,961,084,237.92
  5. Step 5: Solve for x
    x = 612,961,084,237.92/918,275.60
  6. Step 6: Final answer
    x = 667,513.20

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Double scale
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Similar ratio
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1.5x scale

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.