Home / 790,195.32-1,185,331.05-257,715.36

Finding the Fourth Proportional to 790,195.32, 1,185,331.05 and 257,715.36

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Solution

The fourth proportional to 790,195.32, 1,185,331.05 and 257,715.36 is: 386,585.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,195.32 : 1,185,331.05 = 257,715.36 : x
  2. Step 2: Convert to fraction form
    790,195.32/1,185,331.05 = 257,715.36/x
  3. Step 3: Cross multiply
    790,195.32x = 1,185,331.05 × 257,715.36
  4. Step 4: Simplify right side
    790,195.32x = 305,478,018,269.93
  5. Step 5: Solve for x
    x = 305,478,018,269.93/790,195.32
  6. Step 6: Final answer
    x = 386,585.46

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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.