Home / 724,416.73-999,645.08-402,101.46

Finding the Fourth Proportional to 724,416.73, 999,645.08 and 402,101.46

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Solution

The fourth proportional to 724,416.73, 999,645.08 and 402,101.46 is: 554,872.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,416.73 : 999,645.08 = 402,101.46 : x
  2. Step 2: Convert to fraction form
    724,416.73/999,645.08 = 402,101.46/x
  3. Step 3: Cross multiply
    724,416.73x = 999,645.08 × 402,101.46
  4. Step 4: Simplify right side
    724,416.73x = 401,958,741,905.07
  5. Step 5: Solve for x
    x = 401,958,741,905.07/724,416.73
  6. Step 6: Final answer
    x = 554,872.25

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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.