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Finding the Fourth Proportional to 494,096.80, 740,972.40 and 257,360.80

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Solution

The fourth proportional to 494,096.80, 740,972.40 and 257,360.80 is: 385,951.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,096.80 : 740,972.40 = 257,360.80 : x
  2. Step 2: Convert to fraction form
    494,096.80/740,972.40 = 257,360.80/x
  3. Step 3: Cross multiply
    494,096.80x = 740,972.40 × 257,360.80
  4. Step 4: Simplify right side
    494,096.80x = 190,697,249,641.92
  5. Step 5: Solve for x
    x = 190,697,249,641.92/494,096.80
  6. Step 6: Final answer
    x = 385,951.19

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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.