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Finding the Fourth Proportional to 559,236.80, 771,756 and 304,592.96

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Solution

The fourth proportional to 559,236.80, 771,756 and 304,592.96 is: 420,343.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,236.80 : 771,756 = 304,592.96 : x
  2. Step 2: Convert to fraction form
    559,236.80/771,756 = 304,592.96/x
  3. Step 3: Cross multiply
    559,236.80x = 771,756 × 304,592.96
  4. Step 4: Simplify right side
    559,236.80x = 235,071,444,437.76
  5. Step 5: Solve for x
    x = 235,071,444,437.76/559,236.80
  6. Step 6: Final answer
    x = 420,343.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.