Home / 724,351.80-1,087,218.90-619,289.40

Finding the Fourth Proportional to 724,351.80, 1,087,218.90 and 619,289.40

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Solution

The fourth proportional to 724,351.80, 1,087,218.90 and 619,289.40 is: 929,525.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,351.80 : 1,087,218.90 = 619,289.40 : x
  2. Step 2: Convert to fraction form
    724,351.80/1,087,218.90 = 619,289.40/x
  3. Step 3: Cross multiply
    724,351.80x = 1,087,218.90 × 619,289.40
  4. Step 4: Simplify right side
    724,351.80x = 673,303,140,249.66
  5. Step 5: Solve for x
    x = 673,303,140,249.66/724,351.80
  6. Step 6: Final answer
    x = 929,525.05

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1.5x scale

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.