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Finding the Fourth Proportional to 671,378.40, 926,523.06 and 365,475.15

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Solution

The fourth proportional to 671,378.40, 926,523.06 and 365,475.15 is: 504,367.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,378.40 : 926,523.06 = 365,475.15 : x
  2. Step 2: Convert to fraction form
    671,378.40/926,523.06 = 365,475.15/x
  3. Step 3: Cross multiply
    671,378.40x = 926,523.06 × 365,475.15
  4. Step 4: Simplify right side
    671,378.40x = 338,621,154,331.96
  5. Step 5: Solve for x
    x = 338,621,154,331.96/671,378.40
  6. Step 6: Final answer
    x = 504,367.07

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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.