Home / 838,539.52-1,258,061.12-262,139.60

Finding the Fourth Proportional to 838,539.52, 1,258,061.12 and 262,139.60

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Solution

The fourth proportional to 838,539.52, 1,258,061.12 and 262,139.60 is: 393,288.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,539.52 : 1,258,061.12 = 262,139.60 : x
  2. Step 2: Convert to fraction form
    838,539.52/1,258,061.12 = 262,139.60/x
  3. Step 3: Cross multiply
    838,539.52x = 1,258,061.12 × 262,139.60
  4. Step 4: Simplify right side
    838,539.52x = 329,787,638,772.35
  5. Step 5: Solve for x
    x = 329,787,638,772.35/838,539.52
  6. Step 6: Final answer
    x = 393,288.13

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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.