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Finding the Fourth Proportional to 660,729.90, 926,888.10 and 660,729.90

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Solution

The fourth proportional to 660,729.90, 926,888.10 and 660,729.90 is: 926,888.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,729.90 : 926,888.10 = 660,729.90 : x
  2. Step 2: Convert to fraction form
    660,729.90/926,888.10 = 660,729.90/x
  3. Step 3: Cross multiply
    660,729.90x = 926,888.10 × 660,729.90
  4. Step 4: Simplify right side
    660,729.90x = 612,422,681,624.19
  5. Step 5: Solve for x
    x = 612,422,681,624.19/660,729.90
  6. Step 6: Final answer
    x = 926,888.10

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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.