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Finding the Fourth Proportional to 724,070.34, 999,201.42 and 401,760.81

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Solution

The fourth proportional to 724,070.34, 999,201.42 and 401,760.81 is: 554,421.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,070.34 : 999,201.42 = 401,760.81 : x
  2. Step 2: Convert to fraction form
    724,070.34/999,201.42 = 401,760.81/x
  3. Step 3: Cross multiply
    724,070.34x = 999,201.42 × 401,760.81
  4. Step 4: Simplify right side
    724,070.34x = 401,439,971,852.35
  5. Step 5: Solve for x
    x = 401,439,971,852.35/724,070.34
  6. Step 6: Final answer
    x = 554,421.23

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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.