Home / 578,534.72-867,477.09-396,371.12

Finding the Fourth Proportional to 578,534.72, 867,477.09 and 396,371.12

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Solution

The fourth proportional to 578,534.72, 867,477.09 and 396,371.12 is: 594,334.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,534.72 : 867,477.09 = 396,371.12 : x
  2. Step 2: Convert to fraction form
    578,534.72/867,477.09 = 396,371.12/x
  3. Step 3: Cross multiply
    578,534.72x = 867,477.09 × 396,371.12
  4. Step 4: Simplify right side
    578,534.72x = 343,842,865,737.64
  5. Step 5: Solve for x
    x = 343,842,865,737.64/578,534.72
  6. Step 6: Final answer
    x = 594,334.02

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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.