Home / 790,057.72-1,090,421.58-445,998.52

Finding the Fourth Proportional to 790,057.72, 1,090,421.58 and 445,998.52

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Solution

The fourth proportional to 790,057.72, 1,090,421.58 and 445,998.52 is: 615,558.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,057.72 : 1,090,421.58 = 445,998.52 : x
  2. Step 2: Convert to fraction form
    790,057.72/1,090,421.58 = 445,998.52/x
  3. Step 3: Cross multiply
    790,057.72x = 1,090,421.58 × 445,998.52
  4. Step 4: Simplify right side
    790,057.72x = 486,326,410,856.06
  5. Step 5: Solve for x
    x = 486,326,410,856.06/790,057.72
  6. Step 6: Final answer
    x = 615,558.08

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Double scale
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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.