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Finding the Fourth Proportional to 707,562.16, 976,431.62 and 385,271.49

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Solution

The fourth proportional to 707,562.16, 976,431.62 and 385,271.49 is: 531,672.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,562.16 : 976,431.62 = 385,271.49 : x
  2. Step 2: Convert to fraction form
    707,562.16/976,431.62 = 385,271.49/x
  3. Step 3: Cross multiply
    707,562.16x = 976,431.62 × 385,271.49
  4. Step 4: Simplify right side
    707,562.16x = 376,191,265,120.51
  5. Step 5: Solve for x
    x = 376,191,265,120.51/707,562.16
  6. Step 6: Final answer
    x = 531,672.39

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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.