Home / 762,261.76-1,051,885.20-422,722.72

Finding the Fourth Proportional to 762,261.76, 1,051,885.20 and 422,722.72

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Solution

The fourth proportional to 762,261.76, 1,051,885.20 and 422,722.72 is: 583,337.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,261.76 : 1,051,885.20 = 422,722.72 : x
  2. Step 2: Convert to fraction form
    762,261.76/1,051,885.20 = 422,722.72/x
  3. Step 3: Cross multiply
    762,261.76x = 1,051,885.20 × 422,722.72
  4. Step 4: Simplify right side
    762,261.76x = 444,655,772,871.74
  5. Step 5: Solve for x
    x = 444,655,772,871.74/762,261.76
  6. Step 6: Final answer
    x = 583,337.37

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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.