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Finding the Fourth Proportional to 660,725.40, 926,881.80 and 660,725.40

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Solution

The fourth proportional to 660,725.40, 926,881.80 and 660,725.40 is: 926,881.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,725.40 : 926,881.80 = 660,725.40 : x
  2. Step 2: Convert to fraction form
    660,725.40/926,881.80 = 660,725.40/x
  3. Step 3: Cross multiply
    660,725.40x = 926,881.80 × 660,725.40
  4. Step 4: Simplify right side
    660,725.40x = 612,414,348,057.72
  5. Step 5: Solve for x
    x = 612,414,348,057.72/660,725.40
  6. Step 6: Final answer
    x = 926,881.80

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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.