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Finding the Fourth Proportional to 614,745.20, 922,117.80 and 334,809.20

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Solution

The fourth proportional to 614,745.20, 922,117.80 and 334,809.20 is: 502,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,745.20 : 922,117.80 = 334,809.20 : x
  2. Step 2: Convert to fraction form
    614,745.20/922,117.80 = 334,809.20/x
  3. Step 3: Cross multiply
    614,745.20x = 922,117.80 × 334,809.20
  4. Step 4: Simplify right side
    614,745.20x = 308,733,522,923.76
  5. Step 5: Solve for x
    x = 308,733,522,923.76/614,745.20
  6. Step 6: Final answer
    x = 502,213.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.