Home / 418,924.08-578,242.20-284,865.84

Finding the Fourth Proportional to 418,924.08, 578,242.20 and 284,865.84

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Solution

The fourth proportional to 418,924.08, 578,242.20 and 284,865.84 is: 393,201.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,924.08 : 578,242.20 = 284,865.84 : x
  2. Step 2: Convert to fraction form
    418,924.08/578,242.20 = 284,865.84/x
  3. Step 3: Cross multiply
    418,924.08x = 578,242.20 × 284,865.84
  4. Step 4: Simplify right side
    418,924.08x = 164,721,450,026.45
  5. Step 5: Solve for x
    x = 164,721,450,026.45/418,924.08
  6. Step 6: Final answer
    x = 393,201.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.