Home / 692,092.90-1,038,139.35-687,427.30

Finding the Fourth Proportional to 692,092.90, 1,038,139.35 and 687,427.30

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Solution

The fourth proportional to 692,092.90, 1,038,139.35 and 687,427.30 is: 1,031,140.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,092.90 : 1,038,139.35 = 687,427.30 : x
  2. Step 2: Convert to fraction form
    692,092.90/1,038,139.35 = 687,427.30/x
  3. Step 3: Cross multiply
    692,092.90x = 1,038,139.35 × 687,427.30
  4. Step 4: Simplify right side
    692,092.90x = 713,645,330,394.26
  5. Step 5: Solve for x
    x = 713,645,330,394.26/692,092.90
  6. Step 6: Final answer
    x = 1,031,140.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.