Home / 878,622.72-1,212,451.92-496,626.72

Finding the Fourth Proportional to 878,622.72, 1,212,451.92 and 496,626.72

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Solution

The fourth proportional to 878,622.72, 1,212,451.92 and 496,626.72 is: 685,318.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,622.72 : 1,212,451.92 = 496,626.72 : x
  2. Step 2: Convert to fraction form
    878,622.72/1,212,451.92 = 496,626.72/x
  3. Step 3: Cross multiply
    878,622.72x = 1,212,451.92 × 496,626.72
  4. Step 4: Simplify right side
    878,622.72x = 602,136,020,187.30
  5. Step 5: Solve for x
    x = 602,136,020,187.30/878,622.72
  6. Step 6: Final answer
    x = 685,318.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.