Home / 638,448.87-881,032.11-348,053.52

Finding the Fourth Proportional to 638,448.87, 881,032.11 and 348,053.52

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Solution

The fourth proportional to 638,448.87, 881,032.11 and 348,053.52 is: 480,298.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,448.87 : 881,032.11 = 348,053.52 : x
  2. Step 2: Convert to fraction form
    638,448.87/881,032.11 = 348,053.52/x
  3. Step 3: Cross multiply
    638,448.87x = 881,032.11 × 348,053.52
  4. Step 4: Simplify right side
    638,448.87x = 306,646,327,118.53
  5. Step 5: Solve for x
    x = 306,646,327,118.53/638,448.87
  6. Step 6: Final answer
    x = 480,298.96

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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.