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Finding the Fourth Proportional to 671,300.81, 926,398.97 and 365,376.45

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Solution

The fourth proportional to 671,300.81, 926,398.97 and 365,376.45 is: 504,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,300.81 : 926,398.97 = 365,376.45 : x
  2. Step 2: Convert to fraction form
    671,300.81/926,398.97 = 365,376.45/x
  3. Step 3: Cross multiply
    671,300.81x = 926,398.97 × 365,376.45
  4. Step 4: Simplify right side
    671,300.81x = 338,484,372,014.78
  5. Step 5: Solve for x
    x = 338,484,372,014.78/671,300.81
  6. Step 6: Final answer
    x = 504,221.60

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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.