Home / 447,921.60-618,113.28-243,973.32

Finding the Fourth Proportional to 447,921.60, 618,113.28 and 243,973.32

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Solution

The fourth proportional to 447,921.60, 618,113.28 and 243,973.32 is: 336,673.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,921.60 : 618,113.28 = 243,973.32 : x
  2. Step 2: Convert to fraction form
    447,921.60/618,113.28 = 243,973.32/x
  3. Step 3: Cross multiply
    447,921.60x = 618,113.28 × 243,973.32
  4. Step 4: Simplify right side
    447,921.60x = 150,803,149,057.69
  5. Step 5: Solve for x
    x = 150,803,149,057.69/447,921.60
  6. Step 6: Final answer
    x = 336,673.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.