Home / 1,343,206.60-2,016,365.10-811,328.20

Finding the Fourth Proportional to 1,343,206.60, 2,016,365.10 and 811,328.20

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Solution

The fourth proportional to 1,343,206.60, 2,016,365.10 and 811,328.20 is: 1,217,931.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,206.60 : 2,016,365.10 = 811,328.20 : x
  2. Step 2: Convert to fraction form
    1,343,206.60/2,016,365.10 = 811,328.20/x
  3. Step 3: Cross multiply
    1,343,206.60x = 2,016,365.10 × 811,328.20
  4. Step 4: Simplify right side
    1,343,206.60x = 1,635,933,867,125.82
  5. Step 5: Solve for x
    x = 1,635,933,867,125.82/1,343,206.60
  6. Step 6: Final answer
    x = 1,217,931.68

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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.