Home / 917,216.20-1,373,102.70-681,603.40

Finding the Fourth Proportional to 917,216.20, 1,373,102.70 and 681,603.40

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Solution

The fourth proportional to 917,216.20, 1,373,102.70 and 681,603.40 is: 1,020,382.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,216.20 : 1,373,102.70 = 681,603.40 : x
  2. Step 2: Convert to fraction form
    917,216.20/1,373,102.70 = 681,603.40/x
  3. Step 3: Cross multiply
    917,216.20x = 1,373,102.70 × 681,603.40
  4. Step 4: Simplify right side
    917,216.20x = 935,911,468,869.18
  5. Step 5: Solve for x
    x = 935,911,468,869.18/917,216.20
  6. Step 6: Final answer
    x = 1,020,382.62

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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.