Home / 472,724.32-652,363.72-257,865.36

Finding the Fourth Proportional to 472,724.32, 652,363.72 and 257,865.36

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Solution

The fourth proportional to 472,724.32, 652,363.72 and 257,865.36 is: 355,856.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,724.32 : 652,363.72 = 257,865.36 : x
  2. Step 2: Convert to fraction form
    472,724.32/652,363.72 = 257,865.36/x
  3. Step 3: Cross multiply
    472,724.32x = 652,363.72 × 257,865.36
  4. Step 4: Simplify right side
    472,724.32x = 168,222,005,508.74
  5. Step 5: Solve for x
    x = 168,222,005,508.74/472,724.32
  6. Step 6: Final answer
    x = 355,856.47

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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.