Home / 787,107.60-1,180,661.40-629,643.60

Finding the Fourth Proportional to 787,107.60, 1,180,661.40 and 629,643.60

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Solution

The fourth proportional to 787,107.60, 1,180,661.40 and 629,643.60 is: 944,465.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,107.60 : 1,180,661.40 = 629,643.60 : x
  2. Step 2: Convert to fraction form
    787,107.60/1,180,661.40 = 629,643.60/x
  3. Step 3: Cross multiply
    787,107.60x = 1,180,661.40 × 629,643.60
  4. Step 4: Simplify right side
    787,107.60x = 743,395,894,277.04
  5. Step 5: Solve for x
    x = 743,395,894,277.04/787,107.60
  6. Step 6: Final answer
    x = 944,465.40

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Double scale
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Similar ratio
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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.