Home / 627,338.71-865,740.32-340,877.35

Finding the Fourth Proportional to 627,338.71, 865,740.32 and 340,877.35

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Solution

The fourth proportional to 627,338.71, 865,740.32 and 340,877.35 is: 470,417.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,338.71 : 865,740.32 = 340,877.35 : x
  2. Step 2: Convert to fraction form
    627,338.71/865,740.32 = 340,877.35/x
  3. Step 3: Cross multiply
    627,338.71x = 865,740.32 × 340,877.35
  4. Step 4: Simplify right side
    627,338.71x = 295,111,266,069.75
  5. Step 5: Solve for x
    x = 295,111,266,069.75/627,338.71
  6. Step 6: Final answer
    x = 470,417.75

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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.