Home / 679,938.49-938,296.06-374,014.55

Finding the Fourth Proportional to 679,938.49, 938,296.06 and 374,014.55

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Solution

The fourth proportional to 679,938.49, 938,296.06 and 374,014.55 is: 516,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,938.49 : 938,296.06 = 374,014.55 : x
  2. Step 2: Convert to fraction form
    679,938.49/938,296.06 = 374,014.55/x
  3. Step 3: Cross multiply
    679,938.49x = 938,296.06 × 374,014.55
  4. Step 4: Simplify right side
    679,938.49x = 350,936,378,647.67
  5. Step 5: Solve for x
    x = 350,936,378,647.67/679,938.49
  6. Step 6: Final answer
    x = 516,129.60

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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.