Home / 559,631.20-839,446.80-307,688.80

Finding the Fourth Proportional to 559,631.20, 839,446.80 and 307,688.80

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Solution

The fourth proportional to 559,631.20, 839,446.80 and 307,688.80 is: 461,533.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,631.20 : 839,446.80 = 307,688.80 : x
  2. Step 2: Convert to fraction form
    559,631.20/839,446.80 = 307,688.80/x
  3. Step 3: Cross multiply
    559,631.20x = 839,446.80 × 307,688.80
  4. Step 4: Simplify right side
    559,631.20x = 258,288,378,555.84
  5. Step 5: Solve for x
    x = 258,288,378,555.84/559,631.20
  6. Step 6: Final answer
    x = 461,533.20

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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.