Home / 811,480.01-1,217,330.78-338,054.63

Finding the Fourth Proportional to 811,480.01, 1,217,330.78 and 338,054.63

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Solution

The fourth proportional to 811,480.01, 1,217,330.78 and 338,054.63 is: 507,128.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,480.01 : 1,217,330.78 = 338,054.63 : x
  2. Step 2: Convert to fraction form
    811,480.01/1,217,330.78 = 338,054.63/x
  3. Step 3: Cross multiply
    811,480.01x = 1,217,330.78 × 338,054.63
  4. Step 4: Simplify right side
    811,480.01x = 411,524,298,643.58
  5. Step 5: Solve for x
    x = 411,524,298,643.58/811,480.01
  6. Step 6: Final answer
    x = 507,128.08

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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.