Home / 639,736.20-958,948.20-373,359.60

Finding the Fourth Proportional to 639,736.20, 958,948.20 and 373,359.60

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Solution

The fourth proportional to 639,736.20, 958,948.20 and 373,359.60 is: 559,656.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,736.20 : 958,948.20 = 373,359.60 : x
  2. Step 2: Convert to fraction form
    639,736.20/958,948.20 = 373,359.60/x
  3. Step 3: Cross multiply
    639,736.20x = 958,948.20 × 373,359.60
  4. Step 4: Simplify right side
    639,736.20x = 358,032,516,372.72
  5. Step 5: Solve for x
    x = 358,032,516,372.72/639,736.20
  6. Step 6: Final answer
    x = 559,656.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.