Home / 746,574.80-1,120,006.20-320,104.40

Finding the Fourth Proportional to 746,574.80, 1,120,006.20 and 320,104.40

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Solution

The fourth proportional to 746,574.80, 1,120,006.20 and 320,104.40 is: 480,218.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,574.80 : 1,120,006.20 = 320,104.40 : x
  2. Step 2: Convert to fraction form
    746,574.80/1,120,006.20 = 320,104.40/x
  3. Step 3: Cross multiply
    746,574.80x = 1,120,006.20 × 320,104.40
  4. Step 4: Simplify right side
    746,574.80x = 358,518,912,647.28
  5. Step 5: Solve for x
    x = 358,518,912,647.28/746,574.80
  6. Step 6: Final answer
    x = 480,218.34

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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.