Home / 740,261.72-1,023,282.78-660,479.96

Finding the Fourth Proportional to 740,261.72, 1,023,282.78 and 660,479.96

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Solution

The fourth proportional to 740,261.72, 1,023,282.78 and 660,479.96 is: 912,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,261.72 : 1,023,282.78 = 660,479.96 : x
  2. Step 2: Convert to fraction form
    740,261.72/1,023,282.78 = 660,479.96/x
  3. Step 3: Cross multiply
    740,261.72x = 1,023,282.78 × 660,479.96
  4. Step 4: Simplify right side
    740,261.72x = 675,857,769,603.09
  5. Step 5: Solve for x
    x = 675,857,769,603.09/740,261.72
  6. Step 6: Final answer
    x = 912,998.40

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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.