Home / 738,904.27-1,108,794.16-312,416.79

Finding the Fourth Proportional to 738,904.27, 1,108,794.16 and 312,416.79

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Solution

The fourth proportional to 738,904.27, 1,108,794.16 and 312,416.79 is: 468,810.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,904.27 : 1,108,794.16 = 312,416.79 : x
  2. Step 2: Convert to fraction form
    738,904.27/1,108,794.16 = 312,416.79/x
  3. Step 3: Cross multiply
    738,904.27x = 1,108,794.16 × 312,416.79
  4. Step 4: Simplify right side
    738,904.27x = 346,405,912,237.95
  5. Step 5: Solve for x
    x = 346,405,912,237.95/738,904.27
  6. Step 6: Final answer
    x = 468,810.27

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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.