Home / 2,119,084.91-3,180,040.71-771,247.14

Finding the Fourth Proportional to 2,119,084.91, 3,180,040.71 and 771,247.14

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Solution

The fourth proportional to 2,119,084.91, 3,180,040.71 and 771,247.14 is: 1,157,385.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,084.91 : 3,180,040.71 = 771,247.14 : x
  2. Step 2: Convert to fraction form
    2,119,084.91/3,180,040.71 = 771,247.14/x
  3. Step 3: Cross multiply
    2,119,084.91x = 3,180,040.71 × 771,247.14
  4. Step 4: Simplify right side
    2,119,084.91x = 2,452,597,302,671.07
  5. Step 5: Solve for x
    x = 2,452,597,302,671.07/2,119,084.91
  6. Step 6: Final answer
    x = 1,157,385.10

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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.