Home / 917,288.20-1,373,210.70-681,675.40

Finding the Fourth Proportional to 917,288.20, 1,373,210.70 and 681,675.40

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Solution

The fourth proportional to 917,288.20, 1,373,210.70 and 681,675.40 is: 1,020,490.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,288.20 : 1,373,210.70 = 681,675.40 : x
  2. Step 2: Convert to fraction form
    917,288.20/1,373,210.70 = 681,675.40/x
  3. Step 3: Cross multiply
    917,288.20x = 1,373,210.70 × 681,675.40
  4. Step 4: Simplify right side
    917,288.20x = 936,083,953,206.78
  5. Step 5: Solve for x
    x = 936,083,953,206.78/917,288.20
  6. Step 6: Final answer
    x = 1,020,490.56

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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.