Home / 638,876.81-881,666.59-348,493.26

Finding the Fourth Proportional to 638,876.81, 881,666.59 and 348,493.26

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Solution

The fourth proportional to 638,876.81, 881,666.59 and 348,493.26 is: 480,929.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,876.81 : 881,666.59 = 348,493.26 : x
  2. Step 2: Convert to fraction form
    638,876.81/881,666.59 = 348,493.26/x
  3. Step 3: Cross multiply
    638,876.81x = 881,666.59 × 348,493.26
  4. Step 4: Simplify right side
    638,876.81x = 307,254,861,027.62
  5. Step 5: Solve for x
    x = 307,254,861,027.62/638,876.81
  6. Step 6: Final answer
    x = 480,929.75

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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.