Home / 715,743.14-1,072,728.36-360,563.40

Finding the Fourth Proportional to 715,743.14, 1,072,728.36 and 360,563.40

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Solution

The fourth proportional to 715,743.14, 1,072,728.36 and 360,563.40 is: 540,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,743.14 : 1,072,728.36 = 360,563.40 : x
  2. Step 2: Convert to fraction form
    715,743.14/1,072,728.36 = 360,563.40/x
  3. Step 3: Cross multiply
    715,743.14x = 1,072,728.36 × 360,563.40
  4. Step 4: Simplify right side
    715,743.14x = 386,786,584,758.02
  5. Step 5: Solve for x
    x = 386,786,584,758.02/715,743.14
  6. Step 6: Final answer
    x = 540,398.60

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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.