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Finding the Fourth Proportional to 703,150.91, 970,339.78 and 427,417.43

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Solution

The fourth proportional to 703,150.91, 970,339.78 and 427,417.43 is: 589,830.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,150.91 : 970,339.78 = 427,417.43 : x
  2. Step 2: Convert to fraction form
    703,150.91/970,339.78 = 427,417.43/x
  3. Step 3: Cross multiply
    703,150.91x = 970,339.78 × 427,417.43
  4. Step 4: Simplify right side
    703,150.91x = 414,740,131,521.65
  5. Step 5: Solve for x
    x = 414,740,131,521.65/703,150.91
  6. Step 6: Final answer
    x = 589,830.89

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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.