Home / 676,133.40-1,012,726.31-338,585.34

Finding the Fourth Proportional to 676,133.40, 1,012,726.31 and 338,585.34

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Solution

The fourth proportional to 676,133.40, 1,012,726.31 and 338,585.34 is: 507,139.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,133.40 : 1,012,726.31 = 338,585.34 : x
  2. Step 2: Convert to fraction form
    676,133.40/1,012,726.31 = 338,585.34/x
  3. Step 3: Cross multiply
    676,133.40x = 1,012,726.31 × 338,585.34
  4. Step 4: Simplify right side
    676,133.40x = 342,894,280,305.37
  5. Step 5: Solve for x
    x = 342,894,280,305.37/676,133.40
  6. Step 6: Final answer
    x = 507,139.98

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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.