Home / 313,749.10-471,607.80-307,844.20

Finding the Fourth Proportional to 313,749.10, 471,607.80 and 307,844.20

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Solution

The fourth proportional to 313,749.10, 471,607.80 and 307,844.20 is: 462,731.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,749.10 : 471,607.80 = 307,844.20 : x
  2. Step 2: Convert to fraction form
    313,749.10/471,607.80 = 307,844.20/x
  3. Step 3: Cross multiply
    313,749.10x = 471,607.80 × 307,844.20
  4. Step 4: Simplify right side
    313,749.10x = 145,181,725,904.76
  5. Step 5: Solve for x
    x = 145,181,725,904.76/313,749.10
  6. Step 6: Final answer
    x = 462,731.93

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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.