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Finding the Fourth Proportional to 671,750.91, 926,960.22 and 396,064.98

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Solution

The fourth proportional to 671,750.91, 926,960.22 and 396,064.98 is: 546,536.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,750.91 : 926,960.22 = 396,064.98 : x
  2. Step 2: Convert to fraction form
    671,750.91/926,960.22 = 396,064.98/x
  3. Step 3: Cross multiply
    671,750.91x = 926,960.22 × 396,064.98
  4. Step 4: Simplify right side
    671,750.91x = 367,136,480,995.10
  5. Step 5: Solve for x
    x = 367,136,480,995.10/671,750.91
  6. Step 6: Final answer
    x = 546,536.63

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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.