Home / 724,813.10-1,087,219.65-717,814.70

Finding the Fourth Proportional to 724,813.10, 1,087,219.65 and 717,814.70

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Solution

The fourth proportional to 724,813.10, 1,087,219.65 and 717,814.70 is: 1,076,722.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,813.10 : 1,087,219.65 = 717,814.70 : x
  2. Step 2: Convert to fraction form
    724,813.10/1,087,219.65 = 717,814.70/x
  3. Step 3: Cross multiply
    724,813.10x = 1,087,219.65 × 717,814.70
  4. Step 4: Simplify right side
    724,813.10x = 780,422,246,898.86
  5. Step 5: Solve for x
    x = 780,422,246,898.86/724,813.10
  6. Step 6: Final answer
    x = 1,076,722.05

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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.