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Finding the Fourth Proportional to 679,127.46, 937,190.40 and 369,027.32

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Solution

The fourth proportional to 679,127.46, 937,190.40 and 369,027.32 is: 509,254.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,127.46 : 937,190.40 = 369,027.32 : x
  2. Step 2: Convert to fraction form
    679,127.46/937,190.40 = 369,027.32/x
  3. Step 3: Cross multiply
    679,127.46x = 937,190.40 × 369,027.32
  4. Step 4: Simplify right side
    679,127.46x = 345,848,861,641.73
  5. Step 5: Solve for x
    x = 345,848,861,641.73/679,127.46
  6. Step 6: Final answer
    x = 509,254.72

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Double scale
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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.