Home / 787,515.40-1,182,147.90-488,333.80

Finding the Fourth Proportional to 787,515.40, 1,182,147.90 and 488,333.80

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Solution

The fourth proportional to 787,515.40, 1,182,147.90 and 488,333.80 is: 733,043.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,515.40 : 1,182,147.90 = 488,333.80 : x
  2. Step 2: Convert to fraction form
    787,515.40/1,182,147.90 = 488,333.80/x
  3. Step 3: Cross multiply
    787,515.40x = 1,182,147.90 × 488,333.80
  4. Step 4: Simplify right side
    787,515.40x = 577,282,776,169.02
  5. Step 5: Solve for x
    x = 577,282,776,169.02/787,515.40
  6. Step 6: Final answer
    x = 733,043.16

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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.