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Finding the Fourth Proportional to 559,801.20, 839,701.80 and 139,077.08

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Solution

The fourth proportional to 559,801.20, 839,701.80 and 139,077.08 is: 208,615.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,801.20 : 839,701.80 = 139,077.08 : x
  2. Step 2: Convert to fraction form
    559,801.20/839,701.80 = 139,077.08/x
  3. Step 3: Cross multiply
    559,801.20x = 839,701.80 × 139,077.08
  4. Step 4: Simplify right side
    559,801.20x = 116,783,270,216.24
  5. Step 5: Solve for x
    x = 116,783,270,216.24/559,801.20
  6. Step 6: Final answer
    x = 208,615.61

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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.