Home / 418,984.80-578,204.40-228,003.36

Finding the Fourth Proportional to 418,984.80, 578,204.40 and 228,003.36

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Solution

The fourth proportional to 418,984.80, 578,204.40 and 228,003.36 is: 314,647.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,984.80 : 578,204.40 = 228,003.36 : x
  2. Step 2: Convert to fraction form
    418,984.80/578,204.40 = 228,003.36/x
  3. Step 3: Cross multiply
    418,984.80x = 578,204.40 × 228,003.36
  4. Step 4: Simplify right side
    418,984.80x = 131,832,545,966.78
  5. Step 5: Solve for x
    x = 131,832,545,966.78/418,984.80
  6. Step 6: Final answer
    x = 314,647.56

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1.5x scale

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.