Home / 638,744.16-881,467.77-348,356.35

Finding the Fourth Proportional to 638,744.16, 881,467.77 and 348,356.35

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Solution

The fourth proportional to 638,744.16, 881,467.77 and 348,356.35 is: 480,732.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,744.16 : 881,467.77 = 348,356.35 : x
  2. Step 2: Convert to fraction form
    638,744.16/881,467.77 = 348,356.35/x
  3. Step 3: Cross multiply
    638,744.16x = 881,467.77 × 348,356.35
  4. Step 4: Simplify right side
    638,744.16x = 307,064,890,490.25
  5. Step 5: Solve for x
    x = 307,064,890,490.25/638,744.16
  6. Step 6: Final answer
    x = 480,732.21

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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.