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Finding the Fourth Proportional to 442,907.59, 611,312.45 and 270,968.89

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Solution

The fourth proportional to 442,907.59, 611,312.45 and 270,968.89 is: 373,998.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,907.59 : 611,312.45 = 270,968.89 : x
  2. Step 2: Convert to fraction form
    442,907.59/611,312.45 = 270,968.89/x
  3. Step 3: Cross multiply
    442,907.59x = 611,312.45 × 270,968.89
  4. Step 4: Simplify right side
    442,907.59x = 165,646,656,019.68
  5. Step 5: Solve for x
    x = 165,646,656,019.68/442,907.59
  6. Step 6: Final answer
    x = 373,998.23

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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.