Home / 789,948.45-1,185,045.59-257,345.51

Finding the Fourth Proportional to 789,948.45, 1,185,045.59 and 257,345.51

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Solution

The fourth proportional to 789,948.45, 1,185,045.59 and 257,345.51 is: 386,058.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,948.45 : 1,185,045.59 = 257,345.51 : x
  2. Step 2: Convert to fraction form
    789,948.45/1,185,045.59 = 257,345.51/x
  3. Step 3: Cross multiply
    789,948.45x = 1,185,045.59 × 257,345.51
  4. Step 4: Simplify right side
    789,948.45x = 304,966,156,449.94
  5. Step 5: Solve for x
    x = 304,966,156,449.94/789,948.45
  6. Step 6: Final answer
    x = 386,058.30

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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.