Home / 705,207.20-972,942.72-450,707.36

Finding the Fourth Proportional to 705,207.20, 972,942.72 and 450,707.36

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Solution

The fourth proportional to 705,207.20, 972,942.72 and 450,707.36 is: 621,820.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,207.20 : 972,942.72 = 450,707.36 : x
  2. Step 2: Convert to fraction form
    705,207.20/972,942.72 = 450,707.36/x
  3. Step 3: Cross multiply
    705,207.20x = 972,942.72 × 450,707.36
  4. Step 4: Simplify right side
    705,207.20x = 438,512,444,762.42
  5. Step 5: Solve for x
    x = 438,512,444,762.42/705,207.20
  6. Step 6: Final answer
    x = 621,820.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.