Home / 738,908.03-1,108,799.79-312,420.56

Finding the Fourth Proportional to 738,908.03, 1,108,799.79 and 312,420.56

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Solution

The fourth proportional to 738,908.03, 1,108,799.79 and 312,420.56 is: 468,815.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,908.03 : 1,108,799.79 = 312,420.56 : x
  2. Step 2: Convert to fraction form
    738,908.03/1,108,799.79 = 312,420.56/x
  3. Step 3: Cross multiply
    738,908.03x = 1,108,799.79 × 312,420.56
  4. Step 4: Simplify right side
    738,908.03x = 346,411,851,319.68
  5. Step 5: Solve for x
    x = 346,411,851,319.68/738,908.03
  6. Step 6: Final answer
    x = 468,815.92

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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.