Home / 2,119,613.84-3,180,769.41-771,645.45

Finding the Fourth Proportional to 2,119,613.84, 3,180,769.41 and 771,645.45

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Solution

The fourth proportional to 2,119,613.84, 3,180,769.41 and 771,645.45 is: 1,157,959.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,613.84 : 3,180,769.41 = 771,645.45 : x
  2. Step 2: Convert to fraction form
    2,119,613.84/3,180,769.41 = 771,645.45/x
  3. Step 3: Cross multiply
    2,119,613.84x = 3,180,769.41 × 771,645.45
  4. Step 4: Simplify right side
    2,119,613.84x = 2,454,426,242,725.68
  5. Step 5: Solve for x
    x = 2,454,426,242,725.68/2,119,613.84
  6. Step 6: Final answer
    x = 1,157,959.15

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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.