Home / 1,503,138.40-2,254,707.60-989,412.10

Finding the Fourth Proportional to 1,503,138.40, 2,254,707.60 and 989,412.10

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Solution

The fourth proportional to 1,503,138.40, 2,254,707.60 and 989,412.10 is: 1,484,118.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503,138.40 : 2,254,707.60 = 989,412.10 : x
  2. Step 2: Convert to fraction form
    1,503,138.40/2,254,707.60 = 989,412.10/x
  3. Step 3: Cross multiply
    1,503,138.40x = 2,254,707.60 × 989,412.10
  4. Step 4: Simplify right side
    1,503,138.40x = 2,230,834,981,401.96
  5. Step 5: Solve for x
    x = 2,230,834,981,401.96/1,503,138.40
  6. Step 6: Final answer
    x = 1,484,118.15

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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.