Home / 950,345.48-1,311,421.65-520,550.78

Finding the Fourth Proportional to 950,345.48, 1,311,421.65 and 520,550.78

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Solution

The fourth proportional to 950,345.48, 1,311,421.65 and 520,550.78 is: 718,329.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,345.48 : 1,311,421.65 = 520,550.78 : x
  2. Step 2: Convert to fraction form
    950,345.48/1,311,421.65 = 520,550.78/x
  3. Step 3: Cross multiply
    950,345.48x = 1,311,421.65 × 520,550.78
  4. Step 4: Simplify right side
    950,345.48x = 682,661,562,816.39
  5. Step 5: Solve for x
    x = 682,661,562,816.39/950,345.48
  6. Step 6: Final answer
    x = 718,329.89

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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.