Home / 718,533.60-1,078,509.50-381,573.30

Finding the Fourth Proportional to 718,533.60, 1,078,509.50 and 381,573.30

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Solution

The fourth proportional to 718,533.60, 1,078,509.50 and 381,573.30 is: 572,736.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,533.60 : 1,078,509.50 = 381,573.30 : x
  2. Step 2: Convert to fraction form
    718,533.60/1,078,509.50 = 381,573.30/x
  3. Step 3: Cross multiply
    718,533.60x = 1,078,509.50 × 381,573.30
  4. Step 4: Simplify right side
    718,533.60x = 411,530,427,088.48
  5. Step 5: Solve for x
    x = 411,530,427,088.48/718,533.60
  6. Step 6: Final answer
    x = 572,736.51

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Double scale
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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.