Home / 690,741.31-1,036,702.43-270,312.43

Finding the Fourth Proportional to 690,741.31, 1,036,702.43 and 270,312.43

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Solution

The fourth proportional to 690,741.31, 1,036,702.43 and 270,312.43 is: 405,699.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,741.31 : 1,036,702.43 = 270,312.43 : x
  2. Step 2: Convert to fraction form
    690,741.31/1,036,702.43 = 270,312.43/x
  3. Step 3: Cross multiply
    690,741.31x = 1,036,702.43 × 270,312.43
  4. Step 4: Simplify right side
    690,741.31x = 280,233,553,040.21
  5. Step 5: Solve for x
    x = 280,233,553,040.21/690,741.31
  6. Step 6: Final answer
    x = 405,699.72

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1.5x scale

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.