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Finding the Fourth Proportional to 707,778.48, 976,751.88 and 385,506.24

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Solution

The fourth proportional to 707,778.48, 976,751.88 and 385,506.24 is: 532,008.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,778.48 : 976,751.88 = 385,506.24 : x
  2. Step 2: Convert to fraction form
    707,778.48/976,751.88 = 385,506.24/x
  3. Step 3: Cross multiply
    707,778.48x = 976,751.88 × 385,506.24
  4. Step 4: Simplify right side
    707,778.48x = 376,543,944,671.73
  5. Step 5: Solve for x
    x = 376,543,944,671.73/707,778.48
  6. Step 6: Final answer
    x = 532,008.19

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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.