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Finding the Fourth Proportional to 646,763.91, 970,145.88 and 247,527.06

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Solution

The fourth proportional to 646,763.91, 970,145.88 and 247,527.06 is: 371,290.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,763.91 : 970,145.88 = 247,527.06 : x
  2. Step 2: Convert to fraction form
    646,763.91/970,145.88 = 247,527.06/x
  3. Step 3: Cross multiply
    646,763.91x = 970,145.88 × 247,527.06
  4. Step 4: Simplify right side
    646,763.91x = 240,137,357,447.51
  5. Step 5: Solve for x
    x = 240,137,357,447.51/646,763.91
  6. Step 6: Final answer
    x = 371,290.60

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Double scale
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Similar ratio
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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.