Home / 746,580.80-1,120,015.20-320,110.40

Finding the Fourth Proportional to 746,580.80, 1,120,015.20 and 320,110.40

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Solution

The fourth proportional to 746,580.80, 1,120,015.20 and 320,110.40 is: 480,227.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,580.80 : 1,120,015.20 = 320,110.40 : x
  2. Step 2: Convert to fraction form
    746,580.80/1,120,015.20 = 320,110.40/x
  3. Step 3: Cross multiply
    746,580.80x = 1,120,015.20 × 320,110.40
  4. Step 4: Simplify right side
    746,580.80x = 358,528,513,678.08
  5. Step 5: Solve for x
    x = 358,528,513,678.08/746,580.80
  6. Step 6: Final answer
    x = 480,227.34

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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.