Home / 724,118.76-999,330.72-401,829.60

Finding the Fourth Proportional to 724,118.76, 999,330.72 and 401,829.60

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Solution

The fourth proportional to 724,118.76, 999,330.72 and 401,829.60 is: 554,550.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,118.76 : 999,330.72 = 401,829.60 : x
  2. Step 2: Convert to fraction form
    724,118.76/999,330.72 = 401,829.60/x
  3. Step 3: Cross multiply
    724,118.76x = 999,330.72 × 401,829.60
  4. Step 4: Simplify right side
    724,118.76x = 401,560,663,485.31
  5. Step 5: Solve for x
    x = 401,560,663,485.31/724,118.76
  6. Step 6: Final answer
    x = 554,550.84

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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.