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Finding the Fourth Proportional to 528,325.59, 729,089.32 and 301,975.95

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Solution

The fourth proportional to 528,325.59, 729,089.32 and 301,975.95 is: 416,726.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,325.59 : 729,089.32 = 301,975.95 : x
  2. Step 2: Convert to fraction form
    528,325.59/729,089.32 = 301,975.95/x
  3. Step 3: Cross multiply
    528,325.59x = 729,089.32 × 301,975.95
  4. Step 4: Simplify right side
    528,325.59x = 220,167,442,587.20
  5. Step 5: Solve for x
    x = 220,167,442,587.20/528,325.59
  6. Step 6: Final answer
    x = 416,726.82

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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.