Home / 746,587.80-1,120,025.70-320,117.40

Finding the Fourth Proportional to 746,587.80, 1,120,025.70 and 320,117.40

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Solution

The fourth proportional to 746,587.80, 1,120,025.70 and 320,117.40 is: 480,237.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,587.80 : 1,120,025.70 = 320,117.40 : x
  2. Step 2: Convert to fraction form
    746,587.80/1,120,025.70 = 320,117.40/x
  3. Step 3: Cross multiply
    746,587.80x = 1,120,025.70 × 320,117.40
  4. Step 4: Simplify right side
    746,587.80x = 358,539,715,017.18
  5. Step 5: Solve for x
    x = 358,539,715,017.18/746,587.80
  6. Step 6: Final answer
    x = 480,237.84

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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.