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Finding the Fourth Proportional to 436,399.56, 602,235 and 245,411.28

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Solution

The fourth proportional to 436,399.56, 602,235 and 245,411.28 is: 338,669.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,399.56 : 602,235 = 245,411.28 : x
  2. Step 2: Convert to fraction form
    436,399.56/602,235 = 245,411.28/x
  3. Step 3: Cross multiply
    436,399.56x = 602,235 × 245,411.28
  4. Step 4: Simplify right side
    436,399.56x = 147,795,262,210.80
  5. Step 5: Solve for x
    x = 147,795,262,210.80/436,399.56
  6. Step 6: Final answer
    x = 338,669.59

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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.