Home / 787,501.60-1,180,474.80-313,554.40

Finding the Fourth Proportional to 787,501.60, 1,180,474.80 and 313,554.40

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Solution

The fourth proportional to 787,501.60, 1,180,474.80 and 313,554.40 is: 470,021.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,501.60 : 1,180,474.80 = 313,554.40 : x
  2. Step 2: Convert to fraction form
    787,501.60/1,180,474.80 = 313,554.40/x
  3. Step 3: Cross multiply
    787,501.60x = 1,180,474.80 × 313,554.40
  4. Step 4: Simplify right side
    787,501.60x = 370,143,067,629.12
  5. Step 5: Solve for x
    x = 370,143,067,629.12/787,501.60
  6. Step 6: Final answer
    x = 470,021.99

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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.