Home / 811,462.13-1,216,402.20-338,282.81

Finding the Fourth Proportional to 811,462.13, 1,216,402.20 and 338,282.81

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Solution

The fourth proportional to 811,462.13, 1,216,402.20 and 338,282.81 is: 507,094.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,462.13 : 1,216,402.20 = 338,282.81 : x
  2. Step 2: Convert to fraction form
    811,462.13/1,216,402.20 = 338,282.81/x
  3. Step 3: Cross multiply
    811,462.13x = 1,216,402.20 × 338,282.81
  4. Step 4: Simplify right side
    811,462.13x = 411,487,948,224.17
  5. Step 5: Solve for x
    x = 411,487,948,224.17/811,462.13
  6. Step 6: Final answer
    x = 507,094.46

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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.