Home / 724,289.46-999,438.39-402,013.14

Finding the Fourth Proportional to 724,289.46, 999,438.39 and 402,013.14

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Solution

The fourth proportional to 724,289.46, 999,438.39 and 402,013.14 is: 554,733.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,289.46 : 999,438.39 = 402,013.14 : x
  2. Step 2: Convert to fraction form
    724,289.46/999,438.39 = 402,013.14/x
  3. Step 3: Cross multiply
    724,289.46x = 999,438.39 × 402,013.14
  4. Step 4: Simplify right side
    724,289.46x = 401,787,365,400.45
  5. Step 5: Solve for x
    x = 401,787,365,400.45/724,289.46
  6. Step 6: Final answer
    x = 554,733.14

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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.