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Finding the Fourth Proportional to 707,330.62, 976,116.35 and 385,043.12

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Solution

The fourth proportional to 707,330.62, 976,116.35 and 385,043.12 is: 531,359.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,330.62 : 976,116.35 = 385,043.12 : x
  2. Step 2: Convert to fraction form
    707,330.62/976,116.35 = 385,043.12/x
  3. Step 3: Cross multiply
    707,330.62x = 976,116.35 × 385,043.12
  4. Step 4: Simplify right side
    707,330.62x = 375,846,884,887.01
  5. Step 5: Solve for x
    x = 375,846,884,887.01/707,330.62
  6. Step 6: Final answer
    x = 531,359.56

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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.