Home / 724,038.37-999,179.85-401,778.46

Finding the Fourth Proportional to 724,038.37, 999,179.85 and 401,778.46

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Solution

The fourth proportional to 724,038.37, 999,179.85 and 401,778.46 is: 554,458.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,038.37 : 999,179.85 = 401,778.46 : x
  2. Step 2: Convert to fraction form
    724,038.37/999,179.85 = 401,778.46/x
  3. Step 3: Cross multiply
    724,038.37x = 999,179.85 × 401,778.46
  4. Step 4: Simplify right side
    724,038.37x = 401,448,941,396.03
  5. Step 5: Solve for x
    x = 401,448,941,396.03/724,038.37
  6. Step 6: Final answer
    x = 554,458.10

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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.