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Finding the Fourth Proportional to 679,475.81, 937,652.74 and 373,549.97

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Solution

The fourth proportional to 679,475.81, 937,652.74 and 373,549.97 is: 515,485.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,475.81 : 937,652.74 = 373,549.97 : x
  2. Step 2: Convert to fraction form
    679,475.81/937,652.74 = 373,549.97/x
  3. Step 3: Cross multiply
    679,475.81x = 937,652.74 × 373,549.97
  4. Step 4: Simplify right side
    679,475.81x = 350,260,154,307.68
  5. Step 5: Solve for x
    x = 350,260,154,307.68/679,475.81
  6. Step 6: Final answer
    x = 515,485.83

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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.