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Finding the Fourth Proportional to 418,972.77, 578,081.61 and 246,897.77

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Solution

The fourth proportional to 418,972.77, 578,081.61 and 246,897.77 is: 340,659.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,972.77 : 578,081.61 = 246,897.77 : x
  2. Step 2: Convert to fraction form
    418,972.77/578,081.61 = 246,897.77/x
  3. Step 3: Cross multiply
    418,972.77x = 578,081.61 × 246,897.77
  4. Step 4: Simplify right side
    418,972.77x = 142,727,057,496.60
  5. Step 5: Solve for x
    x = 142,727,057,496.60/418,972.77
  6. Step 6: Final answer
    x = 340,659.51

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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.