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Finding the Fourth Proportional to 529,870.01, 731,239.85 and 303,559.25

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Solution

The fourth proportional to 529,870.01, 731,239.85 and 303,559.25 is: 418,922.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,870.01 : 731,239.85 = 303,559.25 : x
  2. Step 2: Convert to fraction form
    529,870.01/731,239.85 = 303,559.25/x
  3. Step 3: Cross multiply
    529,870.01x = 731,239.85 × 303,559.25
  4. Step 4: Simplify right side
    529,870.01x = 221,974,617,538.81
  5. Step 5: Solve for x
    x = 221,974,617,538.81/529,870.01
  6. Step 6: Final answer
    x = 418,922.78

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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.