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Finding the Fourth Proportional to 618,459.12, 925,621.62 and 352,148.16

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Solution

The fourth proportional to 618,459.12, 925,621.62 and 352,148.16 is: 527,045.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,459.12 : 925,621.62 = 352,148.16 : x
  2. Step 2: Convert to fraction form
    618,459.12/925,621.62 = 352,148.16/x
  3. Step 3: Cross multiply
    618,459.12x = 925,621.62 × 352,148.16
  4. Step 4: Simplify right side
    618,459.12x = 325,955,950,339.22
  5. Step 5: Solve for x
    x = 325,955,950,339.22/618,459.12
  6. Step 6: Final answer
    x = 527,045.26

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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.