Home / 1,503,139.40-2,254,709.10-989,413.10

Finding the Fourth Proportional to 1,503,139.40, 2,254,709.10 and 989,413.10

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Solution

The fourth proportional to 1,503,139.40, 2,254,709.10 and 989,413.10 is: 1,484,119.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503,139.40 : 2,254,709.10 = 989,413.10 : x
  2. Step 2: Convert to fraction form
    1,503,139.40/2,254,709.10 = 989,413.10/x
  3. Step 3: Cross multiply
    1,503,139.40x = 2,254,709.10 × 989,413.10
  4. Step 4: Simplify right side
    1,503,139.40x = 2,230,838,720,229.21
  5. Step 5: Solve for x
    x = 2,230,838,720,229.21/1,503,139.40
  6. Step 6: Final answer
    x = 1,484,119.65

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Double scale
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Similar ratio
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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.