Home / 818,031.72-1,226,457.06-344,458.68

Finding the Fourth Proportional to 818,031.72, 1,226,457.06 and 344,458.68

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Solution

The fourth proportional to 818,031.72, 1,226,457.06 and 344,458.68 is: 516,439.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,031.72 : 1,226,457.06 = 344,458.68 : x
  2. Step 2: Convert to fraction form
    818,031.72/1,226,457.06 = 344,458.68/x
  3. Step 3: Cross multiply
    818,031.72x = 1,226,457.06 × 344,458.68
  4. Step 4: Simplify right side
    818,031.72x = 422,463,779,964.28
  5. Step 5: Solve for x
    x = 422,463,779,964.28/818,031.72
  6. Step 6: Final answer
    x = 516,439.36

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1.5x scale

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.