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Finding the Fourth Proportional to 436,897.69, 602,880.43 and 243,290.78

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Solution

The fourth proportional to 436,897.69, 602,880.43 and 243,290.78 is: 335,719.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,897.69 : 602,880.43 = 243,290.78 : x
  2. Step 2: Convert to fraction form
    436,897.69/602,880.43 = 243,290.78/x
  3. Step 3: Cross multiply
    436,897.69x = 602,880.43 × 243,290.78
  4. Step 4: Simplify right side
    436,897.69x = 146,675,250,167.12
  5. Step 5: Solve for x
    x = 146,675,250,167.12/436,897.69
  6. Step 6: Final answer
    x = 335,719.90

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1.5x scale

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.