Home / 624,720.48-862,115.40-338,243.28

Finding the Fourth Proportional to 624,720.48, 862,115.40 and 338,243.28

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Solution

The fourth proportional to 624,720.48, 862,115.40 and 338,243.28 is: 466,776.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,720.48 : 862,115.40 = 338,243.28 : x
  2. Step 2: Convert to fraction form
    624,720.48/862,115.40 = 338,243.28/x
  3. Step 3: Cross multiply
    624,720.48x = 862,115.40 × 338,243.28
  4. Step 4: Simplify right side
    624,720.48x = 291,604,740,634.51
  5. Step 5: Solve for x
    x = 291,604,740,634.51/624,720.48
  6. Step 6: Final answer
    x = 466,776.34

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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.