Home / 679,880.28-938,169.69-373,951.79

Finding the Fourth Proportional to 679,880.28, 938,169.69 and 373,951.79

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Solution

The fourth proportional to 679,880.28, 938,169.69 and 373,951.79 is: 516,017.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,880.28 : 938,169.69 = 373,951.79 : x
  2. Step 2: Convert to fraction form
    679,880.28/938,169.69 = 373,951.79/x
  3. Step 3: Cross multiply
    679,880.28x = 938,169.69 × 373,951.79
  4. Step 4: Simplify right side
    679,880.28x = 350,830,234,427.69
  5. Step 5: Solve for x
    x = 350,830,234,427.69/679,880.28
  6. Step 6: Final answer
    x = 516,017.66

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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.