Home / 740,970.46-1,022,540.24-401,438.71

Finding the Fourth Proportional to 740,970.46, 1,022,540.24 and 401,438.71

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Solution

The fourth proportional to 740,970.46, 1,022,540.24 and 401,438.71 is: 553,985.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,970.46 : 1,022,540.24 = 401,438.71 : x
  2. Step 2: Convert to fraction form
    740,970.46/1,022,540.24 = 401,438.71/x
  3. Step 3: Cross multiply
    740,970.46x = 1,022,540.24 × 401,438.71
  4. Step 4: Simplify right side
    740,970.46x = 410,487,227,748.80
  5. Step 5: Solve for x
    x = 410,487,227,748.80/740,970.46
  6. Step 6: Final answer
    x = 553,985.96

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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.