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Finding the Fourth Proportional to 504,657.20, 756,985.80 and 205,038.20

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Solution

The fourth proportional to 504,657.20, 756,985.80 and 205,038.20 is: 307,557.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,657.20 : 756,985.80 = 205,038.20 : x
  2. Step 2: Convert to fraction form
    504,657.20/756,985.80 = 205,038.20/x
  3. Step 3: Cross multiply
    504,657.20x = 756,985.80 × 205,038.20
  4. Step 4: Simplify right side
    504,657.20x = 155,211,005,857.56
  5. Step 5: Solve for x
    x = 155,211,005,857.56/504,657.20
  6. Step 6: Final answer
    x = 307,557.30

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Double scale
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Similar ratio
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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.