Home / 724,621.40-1,085,619.90-619,645.40

Finding the Fourth Proportional to 724,621.40, 1,085,619.90 and 619,645.40

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Solution

The fourth proportional to 724,621.40, 1,085,619.90 and 619,645.40 is: 928,346.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,621.40 : 1,085,619.90 = 619,645.40 : x
  2. Step 2: Convert to fraction form
    724,621.40/1,085,619.90 = 619,645.40/x
  3. Step 3: Cross multiply
    724,621.40x = 1,085,619.90 × 619,645.40
  4. Step 4: Simplify right side
    724,621.40x = 672,699,377,183.46
  5. Step 5: Solve for x
    x = 672,699,377,183.46/724,621.40
  6. Step 6: Final answer
    x = 928,346.00

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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.