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Finding the Fourth Proportional to 646,667.62, 970,050.63 and 220,071.40

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Solution

The fourth proportional to 646,667.62, 970,050.63 and 220,071.40 is: 330,123.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,667.62 : 970,050.63 = 220,071.40 : x
  2. Step 2: Convert to fraction form
    646,667.62/970,050.63 = 220,071.40/x
  3. Step 3: Cross multiply
    646,667.62x = 970,050.63 × 220,071.40
  4. Step 4: Simplify right side
    646,667.62x = 213,480,398,615.12
  5. Step 5: Solve for x
    x = 213,480,398,615.12/646,667.62
  6. Step 6: Final answer
    x = 330,123.84

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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.