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Finding the Fourth Proportional to 671,921.60, 941,934.40 and 671,921.60

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Solution

The fourth proportional to 671,921.60, 941,934.40 and 671,921.60 is: 941,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,921.60 : 941,934.40 = 671,921.60 : x
  2. Step 2: Convert to fraction form
    671,921.60/941,934.40 = 671,921.60/x
  3. Step 3: Cross multiply
    671,921.60x = 941,934.40 × 671,921.60
  4. Step 4: Simplify right side
    671,921.60x = 632,906,069,143.04
  5. Step 5: Solve for x
    x = 632,906,069,143.04/671,921.60
  6. Step 6: Final answer
    x = 941,934.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.