Home / 627,279.52-865,646.40-340,799.52

Finding the Fourth Proportional to 627,279.52, 865,646.40 and 340,799.52

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Solution

The fourth proportional to 627,279.52, 865,646.40 and 340,799.52 is: 470,303.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,279.52 : 865,646.40 = 340,799.52 : x
  2. Step 2: Convert to fraction form
    627,279.52/865,646.40 = 340,799.52/x
  3. Step 3: Cross multiply
    627,279.52x = 865,646.40 × 340,799.52
  4. Step 4: Simplify right side
    627,279.52x = 295,011,877,609.73
  5. Step 5: Solve for x
    x = 295,011,877,609.73/627,279.52
  6. Step 6: Final answer
    x = 470,303.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.