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Finding the Fourth Proportional to 691,346, 954,058.02 and 373,394

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Solution

The fourth proportional to 691,346, 954,058.02 and 373,394 is: 515,284.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,346 : 954,058.02 = 373,394 : x
  2. Step 2: Convert to fraction form
    691,346/954,058.02 = 373,394/x
  3. Step 3: Cross multiply
    691,346x = 954,058.02 × 373,394
  4. Step 4: Simplify right side
    691,346x = 356,239,540,319.88
  5. Step 5: Solve for x
    x = 356,239,540,319.88/691,346
  6. Step 6: Final answer
    x = 515,284.01

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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.