Home / 690,746.56-1,036,710.30-270,317.68

Finding the Fourth Proportional to 690,746.56, 1,036,710.30 and 270,317.68

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Solution

The fourth proportional to 690,746.56, 1,036,710.30 and 270,317.68 is: 405,707.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,746.56 : 1,036,710.30 = 270,317.68 : x
  2. Step 2: Convert to fraction form
    690,746.56/1,036,710.30 = 270,317.68/x
  3. Step 3: Cross multiply
    690,746.56x = 1,036,710.30 × 270,317.68
  4. Step 4: Simplify right side
    690,746.56x = 280,241,123,128.10
  5. Step 5: Solve for x
    x = 280,241,123,128.10/690,746.56
  6. Step 6: Final answer
    x = 405,707.59

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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.