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Finding the Fourth Proportional to 679,744.66, 938,068.54 and 373,852.39

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Solution

The fourth proportional to 679,744.66, 938,068.54 and 373,852.39 is: 515,927.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,744.66 : 938,068.54 = 373,852.39 : x
  2. Step 2: Convert to fraction form
    679,744.66/938,068.54 = 373,852.39/x
  3. Step 3: Cross multiply
    679,744.66x = 938,068.54 × 373,852.39
  4. Step 4: Simplify right side
    679,744.66x = 350,699,163,606.49
  5. Step 5: Solve for x
    x = 350,699,163,606.49/679,744.66
  6. Step 6: Final answer
    x = 515,927.80

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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.