Home / 559,984.80-839,977.20-307,167.60

Finding the Fourth Proportional to 559,984.80, 839,977.20 and 307,167.60

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Solution

The fourth proportional to 559,984.80, 839,977.20 and 307,167.60 is: 460,751.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,984.80 : 839,977.20 = 307,167.60 : x
  2. Step 2: Convert to fraction form
    559,984.80/839,977.20 = 307,167.60/x
  3. Step 3: Cross multiply
    559,984.80x = 839,977.20 × 307,167.60
  4. Step 4: Simplify right side
    559,984.80x = 258,013,780,578.72
  5. Step 5: Solve for x
    x = 258,013,780,578.72/559,984.80
  6. Step 6: Final answer
    x = 460,751.40

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Double scale
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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.