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Finding the Fourth Proportional to 707,360.31, 976,157.39 and 385,070.33

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Solution

The fourth proportional to 707,360.31, 976,157.39 and 385,070.33 is: 531,397.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,360.31 : 976,157.39 = 385,070.33 : x
  2. Step 2: Convert to fraction form
    707,360.31/976,157.39 = 385,070.33/x
  3. Step 3: Cross multiply
    707,360.31x = 976,157.39 × 385,070.33
  4. Step 4: Simplify right side
    707,360.31x = 375,889,248,299.24
  5. Step 5: Solve for x
    x = 375,889,248,299.24/707,360.31
  6. Step 6: Final answer
    x = 531,397.14

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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.