Home / 1,390,334.40-2,082,002.40-914,443.20

Finding the Fourth Proportional to 1,390,334.40, 2,082,002.40 and 914,443.20

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Solution

The fourth proportional to 1,390,334.40, 2,082,002.40 and 914,443.20 is: 1,369,363.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,334.40 : 2,082,002.40 = 914,443.20 : x
  2. Step 2: Convert to fraction form
    1,390,334.40/2,082,002.40 = 914,443.20/x
  3. Step 3: Cross multiply
    1,390,334.40x = 2,082,002.40 × 914,443.20
  4. Step 4: Simplify right side
    1,390,334.40x = 1,903,872,937,063.68
  5. Step 5: Solve for x
    x = 1,903,872,937,063.68/1,390,334.40
  6. Step 6: Final answer
    x = 1,369,363.33

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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.