Home / 679,569.09-937,807.76-373,664.72

Finding the Fourth Proportional to 679,569.09, 937,807.76 and 373,664.72

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Solution

The fourth proportional to 679,569.09, 937,807.76 and 373,664.72 is: 515,658.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,569.09 : 937,807.76 = 373,664.72 : x
  2. Step 2: Convert to fraction form
    679,569.09/937,807.76 = 373,664.72/x
  3. Step 3: Cross multiply
    679,569.09x = 937,807.76 × 373,664.72
  4. Step 4: Simplify right side
    679,569.09x = 350,425,667,496.87
  5. Step 5: Solve for x
    x = 350,425,667,496.87/679,569.09
  6. Step 6: Final answer
    x = 515,658.63

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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.