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Finding the Fourth Proportional to 559,809.20, 839,713.80 and 335,860.40

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Solution

The fourth proportional to 559,809.20, 839,713.80 and 335,860.40 is: 503,790.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,809.20 : 839,713.80 = 335,860.40 : x
  2. Step 2: Convert to fraction form
    559,809.20/839,713.80 = 335,860.40/x
  3. Step 3: Cross multiply
    559,809.20x = 839,713.80 × 335,860.40
  4. Step 4: Simplify right side
    559,809.20x = 282,026,612,753.52
  5. Step 5: Solve for x
    x = 282,026,612,753.52/559,809.20
  6. Step 6: Final answer
    x = 503,790.60

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Similar ratio
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1.5x scale

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.