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Finding the Fourth Proportional to 388,885.72, 583,537.70 and 374,731.12

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Solution

The fourth proportional to 388,885.72, 583,537.70 and 374,731.12 is: 562,298.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,885.72 : 583,537.70 = 374,731.12 : x
  2. Step 2: Convert to fraction form
    388,885.72/583,537.70 = 374,731.12/x
  3. Step 3: Cross multiply
    388,885.72x = 583,537.70 × 374,731.12
  4. Step 4: Simplify right side
    388,885.72x = 218,669,735,883.22
  5. Step 5: Solve for x
    x = 218,669,735,883.22/388,885.72
  6. Step 6: Final answer
    x = 562,298.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.