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Finding the Fourth Proportional to 679,323.81, 937,469.24 and 373,426.76

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Solution

The fourth proportional to 679,323.81, 937,469.24 and 373,426.76 is: 515,330.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,323.81 : 937,469.24 = 373,426.76 : x
  2. Step 2: Convert to fraction form
    679,323.81/937,469.24 = 373,426.76/x
  3. Step 3: Cross multiply
    679,323.81x = 937,469.24 × 373,426.76
  4. Step 4: Simplify right side
    679,323.81x = 350,076,094,338.38
  5. Step 5: Solve for x
    x = 350,076,094,338.38/679,323.81
  6. Step 6: Final answer
    x = 515,330.23

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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.