Home / 738,368.20-1,106,816.28-312,011.56

Finding the Fourth Proportional to 738,368.20, 1,106,816.28 and 312,011.56

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Solution

The fourth proportional to 738,368.20, 1,106,816.28 and 312,011.56 is: 467,706.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,368.20 : 1,106,816.28 = 312,011.56 : x
  2. Step 2: Convert to fraction form
    738,368.20/1,106,816.28 = 312,011.56/x
  3. Step 3: Cross multiply
    738,368.20x = 1,106,816.28 × 312,011.56
  4. Step 4: Simplify right side
    738,368.20x = 345,339,474,156.20
  5. Step 5: Solve for x
    x = 345,339,474,156.20/738,368.20
  6. Step 6: Final answer
    x = 467,706.32

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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.