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Finding the Fourth Proportional to 529,316.16, 730,488.96 and 302,956.80

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Solution

The fourth proportional to 529,316.16, 730,488.96 and 302,956.80 is: 418,099.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,316.16 : 730,488.96 = 302,956.80 : x
  2. Step 2: Convert to fraction form
    529,316.16/730,488.96 = 302,956.80/x
  3. Step 3: Cross multiply
    529,316.16x = 730,488.96 × 302,956.80
  4. Step 4: Simplify right side
    529,316.16x = 221,306,597,756.93
  5. Step 5: Solve for x
    x = 221,306,597,756.93/529,316.16
  6. Step 6: Final answer
    x = 418,099.08

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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.