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Finding the Fourth Proportional to 707,512.41, 976,384.62 and 385,240.14

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Solution

The fourth proportional to 707,512.41, 976,384.62 and 385,240.14 is: 531,640.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,512.41 : 976,384.62 = 385,240.14 : x
  2. Step 2: Convert to fraction form
    707,512.41/976,384.62 = 385,240.14/x
  3. Step 3: Cross multiply
    707,512.41x = 976,384.62 × 385,240.14
  4. Step 4: Simplify right side
    707,512.41x = 376,142,547,702.65
  5. Step 5: Solve for x
    x = 376,142,547,702.65/707,512.41
  6. Step 6: Final answer
    x = 531,640.92

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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.