Home / 840,285.74-1,159,593.63-458,311.34

Finding the Fourth Proportional to 840,285.74, 1,159,593.63 and 458,311.34

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Solution

The fourth proportional to 840,285.74, 1,159,593.63 and 458,311.34 is: 632,469.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,285.74 : 1,159,593.63 = 458,311.34 : x
  2. Step 2: Convert to fraction form
    840,285.74/1,159,593.63 = 458,311.34/x
  3. Step 3: Cross multiply
    840,285.74x = 1,159,593.63 × 458,311.34
  4. Step 4: Simplify right side
    840,285.74x = 531,454,910,420.76
  5. Step 5: Solve for x
    x = 531,454,910,420.76/840,285.74
  6. Step 6: Final answer
    x = 632,469.27

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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.