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Finding the Fourth Proportional to 660,759.22, 912,286.55 and 507,523.42

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Solution

The fourth proportional to 660,759.22, 912,286.55 and 507,523.42 is: 700,719.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,759.22 : 912,286.55 = 507,523.42 : x
  2. Step 2: Convert to fraction form
    660,759.22/912,286.55 = 507,523.42/x
  3. Step 3: Cross multiply
    660,759.22x = 912,286.55 × 507,523.42
  4. Step 4: Simplify right side
    660,759.22x = 463,006,789,430.35
  5. Step 5: Solve for x
    x = 463,006,789,430.35/660,759.22
  6. Step 6: Final answer
    x = 700,719.38

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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.