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Finding the Fourth Proportional to 436,708.14, 602,669 and 245,728.32

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Solution

The fourth proportional to 436,708.14, 602,669 and 245,728.32 is: 339,111.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,708.14 : 602,669 = 245,728.32 : x
  2. Step 2: Convert to fraction form
    436,708.14/602,669 = 245,728.32/x
  3. Step 3: Cross multiply
    436,708.14x = 602,669 × 245,728.32
  4. Step 4: Simplify right side
    436,708.14x = 148,092,840,886.08
  5. Step 5: Solve for x
    x = 148,092,840,886.08/436,708.14
  6. Step 6: Final answer
    x = 339,111.70

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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.