Home / 1,090,413.84-1,504,719-660,666.72

Finding the Fourth Proportional to 1,090,413.84, 1,504,719 and 660,666.72

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Solution

The fourth proportional to 1,090,413.84, 1,504,719 and 660,666.72 is: 911,688.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,413.84 : 1,504,719 = 660,666.72 : x
  2. Step 2: Convert to fraction form
    1,090,413.84/1,504,719 = 660,666.72/x
  3. Step 3: Cross multiply
    1,090,413.84x = 1,504,719 × 660,666.72
  4. Step 4: Simplify right side
    1,090,413.84x = 994,117,766,251.68
  5. Step 5: Solve for x
    x = 994,117,766,251.68/1,090,413.84
  6. Step 6: Final answer
    x = 911,688.51

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.