Home / 900,450.90-1,242,569.97-492,476.58

Finding the Fourth Proportional to 900,450.90, 1,242,569.97 and 492,476.58

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Solution

The fourth proportional to 900,450.90, 1,242,569.97 and 492,476.58 is: 679,589.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,450.90 : 1,242,569.97 = 492,476.58 : x
  2. Step 2: Convert to fraction form
    900,450.90/1,242,569.97 = 492,476.58/x
  3. Step 3: Cross multiply
    900,450.90x = 1,242,569.97 × 492,476.58
  4. Step 4: Simplify right side
    900,450.90x = 611,936,609,236.30
  5. Step 5: Solve for x
    x = 611,936,609,236.30/900,450.90
  6. Step 6: Final answer
    x = 679,589.09

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1.5x scale

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.