Home / 785,497.60-1,177,468.80-385,811.20

Finding the Fourth Proportional to 785,497.60, 1,177,468.80 and 385,811.20

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Solution

The fourth proportional to 785,497.60, 1,177,468.80 and 385,811.20 is: 578,334.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,497.60 : 1,177,468.80 = 385,811.20 : x
  2. Step 2: Convert to fraction form
    785,497.60/1,177,468.80 = 385,811.20/x
  3. Step 3: Cross multiply
    785,497.60x = 1,177,468.80 × 385,811.20
  4. Step 4: Simplify right side
    785,497.60x = 454,280,650,690.56
  5. Step 5: Solve for x
    x = 454,280,650,690.56/785,497.60
  6. Step 6: Final answer
    x = 578,334.87

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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.