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Finding the Fourth Proportional to 660,729.40, 926,887.40 and 660,729.40

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Solution

The fourth proportional to 660,729.40, 926,887.40 and 660,729.40 is: 926,887.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,729.40 : 926,887.40 = 660,729.40 : x
  2. Step 2: Convert to fraction form
    660,729.40/926,887.40 = 660,729.40/x
  3. Step 3: Cross multiply
    660,729.40x = 926,887.40 × 660,729.40
  4. Step 4: Simplify right side
    660,729.40x = 612,421,755,669.56
  5. Step 5: Solve for x
    x = 612,421,755,669.56/660,729.40
  6. Step 6: Final answer
    x = 926,887.40

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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.