Home / 654,436.90-903,283.29-400,001.38

Finding the Fourth Proportional to 654,436.90, 903,283.29 and 400,001.38

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Solution

The fourth proportional to 654,436.90, 903,283.29 and 400,001.38 is: 552,099.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,436.90 : 903,283.29 = 400,001.38 : x
  2. Step 2: Convert to fraction form
    654,436.90/903,283.29 = 400,001.38/x
  3. Step 3: Cross multiply
    654,436.90x = 903,283.29 × 400,001.38
  4. Step 4: Simplify right side
    654,436.90x = 361,314,562,530.94
  5. Step 5: Solve for x
    x = 361,314,562,530.94/654,436.90
  6. Step 6: Final answer
    x = 552,099.92

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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.