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Finding the Fourth Proportional to 707,337.80, 976,126.30 and 385,050.36

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Solution

The fourth proportional to 707,337.80, 976,126.30 and 385,050.36 is: 531,369.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,337.80 : 976,126.30 = 385,050.36 : x
  2. Step 2: Convert to fraction form
    707,337.80/976,126.30 = 385,050.36/x
  3. Step 3: Cross multiply
    707,337.80x = 976,126.30 × 385,050.36
  4. Step 4: Simplify right side
    707,337.80x = 375,857,783,220.47
  5. Step 5: Solve for x
    x = 375,857,783,220.47/707,337.80
  6. Step 6: Final answer
    x = 531,369.57

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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.