Home / 899,104.86-1,349,320.95-425,789.46

Finding the Fourth Proportional to 899,104.86, 1,349,320.95 and 425,789.46

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Solution

The fourth proportional to 899,104.86, 1,349,320.95 and 425,789.46 is: 638,998.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,104.86 : 1,349,320.95 = 425,789.46 : x
  2. Step 2: Convert to fraction form
    899,104.86/1,349,320.95 = 425,789.46/x
  3. Step 3: Cross multiply
    899,104.86x = 1,349,320.95 × 425,789.46
  4. Step 4: Simplify right side
    899,104.86x = 574,526,638,667.19
  5. Step 5: Solve for x
    x = 574,526,638,667.19/899,104.86
  6. Step 6: Final answer
    x = 638,998.48

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Double scale
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Similar ratio
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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.