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Finding the Fourth Proportional to 559,969.10, 839,953.65 and 280,033.10

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Solution

The fourth proportional to 559,969.10, 839,953.65 and 280,033.10 is: 420,049.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,969.10 : 839,953.65 = 280,033.10 : x
  2. Step 2: Convert to fraction form
    559,969.10/839,953.65 = 280,033.10/x
  3. Step 3: Cross multiply
    559,969.10x = 839,953.65 × 280,033.10
  4. Step 4: Simplify right side
    559,969.10x = 235,214,824,465.82
  5. Step 5: Solve for x
    x = 235,214,824,465.82/559,969.10
  6. Step 6: Final answer
    x = 420,049.65

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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.