Home / 645,521.72-966,412.73-486,268.35

Finding the Fourth Proportional to 645,521.72, 966,412.73 and 486,268.35

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Solution

The fourth proportional to 645,521.72, 966,412.73 and 486,268.35 is: 727,993.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,521.72 : 966,412.73 = 486,268.35 : x
  2. Step 2: Convert to fraction form
    645,521.72/966,412.73 = 486,268.35/x
  3. Step 3: Cross multiply
    645,521.72x = 966,412.73 × 486,268.35
  4. Step 4: Simplify right side
    645,521.72x = 469,935,926,663.79
  5. Step 5: Solve for x
    x = 469,935,926,663.79/645,521.72
  6. Step 6: Final answer
    x = 727,993.98

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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.