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Finding the Fourth Proportional to 559,426.80, 837,171.90 and 512,187.60

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Solution

The fourth proportional to 559,426.80, 837,171.90 and 512,187.60 is: 766,479.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,426.80 : 837,171.90 = 512,187.60 : x
  2. Step 2: Convert to fraction form
    559,426.80/837,171.90 = 512,187.60/x
  3. Step 3: Cross multiply
    559,426.80x = 837,171.90 × 512,187.60
  4. Step 4: Simplify right side
    559,426.80x = 428,789,066,248.44
  5. Step 5: Solve for x
    x = 428,789,066,248.44/559,426.80
  6. Step 6: Final answer
    x = 766,479.31

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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.