Home / 725,776.81-1,001,597.65-399,114.69

Finding the Fourth Proportional to 725,776.81, 1,001,597.65 and 399,114.69

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Solution

The fourth proportional to 725,776.81, 1,001,597.65 and 399,114.69 is: 550,792.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,776.81 : 1,001,597.65 = 399,114.69 : x
  2. Step 2: Convert to fraction form
    725,776.81/1,001,597.65 = 399,114.69/x
  3. Step 3: Cross multiply
    725,776.81x = 1,001,597.65 × 399,114.69
  4. Step 4: Simplify right side
    725,776.81x = 399,752,338,709.71
  5. Step 5: Solve for x
    x = 399,752,338,709.71/725,776.81
  6. Step 6: Final answer
    x = 550,792.38

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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.