Home / 627,036.23-865,281.04-355,106.07

Finding the Fourth Proportional to 627,036.23, 865,281.04 and 355,106.07

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Solution

The fourth proportional to 627,036.23, 865,281.04 and 355,106.07 is: 490,029.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,036.23 : 865,281.04 = 355,106.07 : x
  2. Step 2: Convert to fraction form
    627,036.23/865,281.04 = 355,106.07/x
  3. Step 3: Cross multiply
    627,036.23x = 865,281.04 × 355,106.07
  4. Step 4: Simplify right side
    627,036.23x = 307,266,548,672.15
  5. Step 5: Solve for x
    x = 307,266,548,672.15/627,036.23
  6. Step 6: Final answer
    x = 490,029.97

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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.