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Finding the Fourth Proportional to 679,479.90, 937,658.36 and 373,554.07

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Solution

The fourth proportional to 679,479.90, 937,658.36 and 373,554.07 is: 515,491.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,479.90 : 937,658.36 = 373,554.07 : x
  2. Step 2: Convert to fraction form
    679,479.90/937,658.36 = 373,554.07/x
  3. Step 3: Cross multiply
    679,479.90x = 937,658.36 × 373,554.07
  4. Step 4: Simplify right side
    679,479.90x = 350,266,090,091.46
  5. Step 5: Solve for x
    x = 350,266,090,091.46/679,479.90
  6. Step 6: Final answer
    x = 515,491.47

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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.