Home / 679,732.51-938,012.15-373,808.89

Finding the Fourth Proportional to 679,732.51, 938,012.15 and 373,808.89

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Solution

The fourth proportional to 679,732.51, 938,012.15 and 373,808.89 is: 515,845.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,732.51 : 938,012.15 = 373,808.89 : x
  2. Step 2: Convert to fraction form
    679,732.51/938,012.15 = 373,808.89/x
  3. Step 3: Cross multiply
    679,732.51x = 938,012.15 × 373,808.89
  4. Step 4: Simplify right side
    679,732.51x = 350,637,279,187.51
  5. Step 5: Solve for x
    x = 350,637,279,187.51/679,732.51
  6. Step 6: Final answer
    x = 515,845.98

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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.