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Finding the Fourth Proportional to 646,792.80, 970,247.52 and 291,973.92

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Solution

The fourth proportional to 646,792.80, 970,247.52 and 291,973.92 is: 437,987.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,792.80 : 970,247.52 = 291,973.92 : x
  2. Step 2: Convert to fraction form
    646,792.80/970,247.52 = 291,973.92/x
  3. Step 3: Cross multiply
    646,792.80x = 970,247.52 × 291,973.92
  4. Step 4: Simplify right side
    646,792.80x = 283,286,971,784.68
  5. Step 5: Solve for x
    x = 283,286,971,784.68/646,792.80
  6. Step 6: Final answer
    x = 437,987.21

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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.