Home / 738,598.05-1,108,015.18-312,138.01

Finding the Fourth Proportional to 738,598.05, 1,108,015.18 and 312,138.01

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Solution

The fourth proportional to 738,598.05, 1,108,015.18 and 312,138.01 is: 468,256.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,598.05 : 1,108,015.18 = 312,138.01 : x
  2. Step 2: Convert to fraction form
    738,598.05/1,108,015.18 = 312,138.01/x
  3. Step 3: Cross multiply
    738,598.05x = 1,108,015.18 × 312,138.01
  4. Step 4: Simplify right side
    738,598.05x = 345,853,653,334.99
  5. Step 5: Solve for x
    x = 345,853,653,334.99/738,598.05
  6. Step 6: Final answer
    x = 468,256.93

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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.