Home / 679,815.34-938,168.80-373,914.92

Finding the Fourth Proportional to 679,815.34, 938,168.80 and 373,914.92

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Solution

The fourth proportional to 679,815.34, 938,168.80 and 373,914.92 is: 516,015.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,815.34 : 938,168.80 = 373,914.92 : x
  2. Step 2: Convert to fraction form
    679,815.34/938,168.80 = 373,914.92/x
  3. Step 3: Cross multiply
    679,815.34x = 938,168.80 × 373,914.92
  4. Step 4: Simplify right side
    679,815.34x = 350,795,311,798.50
  5. Step 5: Solve for x
    x = 350,795,311,798.50/679,815.34
  6. Step 6: Final answer
    x = 516,015.59

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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.