Home / 738,787.56-1,108,608.65-312,295.79

Finding the Fourth Proportional to 738,787.56, 1,108,608.65 and 312,295.79

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Solution

The fourth proportional to 738,787.56, 1,108,608.65 and 312,295.79 is: 468,624.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,787.56 : 1,108,608.65 = 312,295.79 : x
  2. Step 2: Convert to fraction form
    738,787.56/1,108,608.65 = 312,295.79/x
  3. Step 3: Cross multiply
    738,787.56x = 1,108,608.65 × 312,295.79
  4. Step 4: Simplify right side
    738,787.56x = 346,213,811,176.14
  5. Step 5: Solve for x
    x = 346,213,811,176.14/738,787.56
  6. Step 6: Final answer
    x = 468,624.31

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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.