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Finding the Fourth Proportional to 679,253.64, 937,379.76 and 373,358.31

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Solution

The fourth proportional to 679,253.64, 937,379.76 and 373,358.31 is: 515,239.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,253.64 : 937,379.76 = 373,358.31 : x
  2. Step 2: Convert to fraction form
    679,253.64/937,379.76 = 373,358.31/x
  3. Step 3: Cross multiply
    679,253.64x = 937,379.76 × 373,358.31
  4. Step 4: Simplify right side
    679,253.64x = 349,978,523,021.81
  5. Step 5: Solve for x
    x = 349,978,523,021.81/679,253.64
  6. Step 6: Final answer
    x = 515,239.82

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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.