Home / 634,880.43-876,145.68-348,427.17

Finding the Fourth Proportional to 634,880.43, 876,145.68 and 348,427.17

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Solution

The fourth proportional to 634,880.43, 876,145.68 and 348,427.17 is: 480,835.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,880.43 : 876,145.68 = 348,427.17 : x
  2. Step 2: Convert to fraction form
    634,880.43/876,145.68 = 348,427.17/x
  3. Step 3: Cross multiply
    634,880.43x = 876,145.68 × 348,427.17
  4. Step 4: Simplify right side
    634,880.43x = 305,272,959,790.13
  5. Step 5: Solve for x
    x = 305,272,959,790.13/634,880.43
  6. Step 6: Final answer
    x = 480,835.36

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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.