Home / 679,907.06-938,294.78-374,006.19

Finding the Fourth Proportional to 679,907.06, 938,294.78 and 374,006.19

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Solution

The fourth proportional to 679,907.06, 938,294.78 and 374,006.19 is: 516,141.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,907.06 : 938,294.78 = 374,006.19 : x
  2. Step 2: Convert to fraction form
    679,907.06/938,294.78 = 374,006.19/x
  3. Step 3: Cross multiply
    679,907.06x = 938,294.78 × 374,006.19
  4. Step 4: Simplify right side
    679,907.06x = 350,928,053,894.66
  5. Step 5: Solve for x
    x = 350,928,053,894.66/679,907.06
  6. Step 6: Final answer
    x = 516,141.22

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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.