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Finding the Fourth Proportional to 438,464.34, 605,661.72 and 352,746.18

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Solution

The fourth proportional to 438,464.34, 605,661.72 and 352,746.18 is: 487,257.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,464.34 : 605,661.72 = 352,746.18 : x
  2. Step 2: Convert to fraction form
    438,464.34/605,661.72 = 352,746.18/x
  3. Step 3: Cross multiply
    438,464.34x = 605,661.72 × 352,746.18
  4. Step 4: Simplify right side
    438,464.34x = 213,644,855,073.92
  5. Step 5: Solve for x
    x = 213,644,855,073.92/438,464.34
  6. Step 6: Final answer
    x = 487,257.08

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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.