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Finding the Fourth Proportional to 707,432.64, 976,262.94 and 385,144.98

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Solution

The fourth proportional to 707,432.64, 976,262.94 and 385,144.98 is: 531,503.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,432.64 : 976,262.94 = 385,144.98 : x
  2. Step 2: Convert to fraction form
    707,432.64/976,262.94 = 385,144.98/x
  3. Step 3: Cross multiply
    707,432.64x = 976,262.94 × 385,144.98
  4. Step 4: Simplify right side
    707,432.64x = 376,002,770,501.04
  5. Step 5: Solve for x
    x = 376,002,770,501.04/707,432.64
  6. Step 6: Final answer
    x = 531,503.28

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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.