Home / 627,036.04-865,315.98-340,561.72

Finding the Fourth Proportional to 627,036.04, 865,315.98 and 340,561.72

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Solution

The fourth proportional to 627,036.04, 865,315.98 and 340,561.72 is: 469,978.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,036.04 : 865,315.98 = 340,561.72 : x
  2. Step 2: Convert to fraction form
    627,036.04/865,315.98 = 340,561.72/x
  3. Step 3: Cross multiply
    627,036.04x = 865,315.98 × 340,561.72
  4. Step 4: Simplify right side
    627,036.04x = 294,693,498,492.29
  5. Step 5: Solve for x
    x = 294,693,498,492.29/627,036.04
  6. Step 6: Final answer
    x = 469,978.57

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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.