Home / 790,416.83-1,185,813.86-257,938.82

Finding the Fourth Proportional to 790,416.83, 1,185,813.86 and 257,938.82

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Solution

The fourth proportional to 790,416.83, 1,185,813.86 and 257,938.82 is: 386,969.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,416.83 : 1,185,813.86 = 257,938.82 : x
  2. Step 2: Convert to fraction form
    790,416.83/1,185,813.86 = 257,938.82/x
  3. Step 3: Cross multiply
    790,416.83x = 1,185,813.86 × 257,938.82
  4. Step 4: Simplify right side
    790,416.83x = 305,867,420,569.28
  5. Step 5: Solve for x
    x = 305,867,420,569.28/790,416.83
  6. Step 6: Final answer
    x = 386,969.77

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1.5x scale

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.