Home / 624,533.12-861,410.40-382,872.32

Finding the Fourth Proportional to 624,533.12, 861,410.40 and 382,872.32

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Solution

The fourth proportional to 624,533.12, 861,410.40 and 382,872.32 is: 528,090.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,533.12 : 861,410.40 = 382,872.32 : x
  2. Step 2: Convert to fraction form
    624,533.12/861,410.40 = 382,872.32/x
  3. Step 3: Cross multiply
    624,533.12x = 861,410.40 × 382,872.32
  4. Step 4: Simplify right side
    624,533.12x = 329,810,198,320.13
  5. Step 5: Solve for x
    x = 329,810,198,320.13/624,533.12
  6. Step 6: Final answer
    x = 528,090.81

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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.