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Finding the Fourth Proportional to 724,006.32, 999,113.46 and 401,709.48

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Solution

The fourth proportional to 724,006.32, 999,113.46 and 401,709.48 is: 554,350.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,006.32 : 999,113.46 = 401,709.48 : x
  2. Step 2: Convert to fraction form
    724,006.32/999,113.46 = 401,709.48/x
  3. Step 3: Cross multiply
    724,006.32x = 999,113.46 × 401,709.48
  4. Step 4: Simplify right side
    724,006.32x = 401,353,348,477.60
  5. Step 5: Solve for x
    x = 401,353,348,477.60/724,006.32
  6. Step 6: Final answer
    x = 554,350.61

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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.