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Finding the Fourth Proportional to 540,752.40, 811,130.37 and 203,702.59

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Solution

The fourth proportional to 540,752.40, 811,130.37 and 203,702.59 is: 305,554.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,752.40 : 811,130.37 = 203,702.59 : x
  2. Step 2: Convert to fraction form
    540,752.40/811,130.37 = 203,702.59/x
  3. Step 3: Cross multiply
    540,752.40x = 811,130.37 × 203,702.59
  4. Step 4: Simplify right side
    540,752.40x = 165,229,357,196.66
  5. Step 5: Solve for x
    x = 165,229,357,196.66/540,752.40
  6. Step 6: Final answer
    x = 305,554.55

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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.