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Finding the Fourth Proportional to 528,269.95, 728,203.62 and 323,941.96

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Solution

The fourth proportional to 528,269.95, 728,203.62 and 323,941.96 is: 446,543.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,269.95 : 728,203.62 = 323,941.96 : x
  2. Step 2: Convert to fraction form
    528,269.95/728,203.62 = 323,941.96/x
  3. Step 3: Cross multiply
    528,269.95x = 728,203.62 × 323,941.96
  4. Step 4: Simplify right side
    528,269.95x = 235,895,710,066.93
  5. Step 5: Solve for x
    x = 235,895,710,066.93/528,269.95
  6. Step 6: Final answer
    x = 446,543.87

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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.