Home / 945,445.64-1,304,723.32-515,727.68

Finding the Fourth Proportional to 945,445.64, 1,304,723.32 and 515,727.68

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Solution

The fourth proportional to 945,445.64, 1,304,723.32 and 515,727.68 is: 711,708.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,445.64 : 1,304,723.32 = 515,727.68 : x
  2. Step 2: Convert to fraction form
    945,445.64/1,304,723.32 = 515,727.68/x
  3. Step 3: Cross multiply
    945,445.64x = 1,304,723.32 × 515,727.68
  4. Step 4: Simplify right side
    945,445.64x = 672,881,930,865.50
  5. Step 5: Solve for x
    x = 672,881,930,865.50/945,445.64
  6. Step 6: Final answer
    x = 711,708.75

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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.