Home / 811,437.51-1,217,266.99-338,012.16

Finding the Fourth Proportional to 811,437.51, 1,217,266.99 and 338,012.16

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Solution

The fourth proportional to 811,437.51, 1,217,266.99 and 338,012.16 is: 507,064.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,437.51 : 1,217,266.99 = 338,012.16 : x
  2. Step 2: Convert to fraction form
    811,437.51/1,217,266.99 = 338,012.16/x
  3. Step 3: Cross multiply
    811,437.51x = 1,217,266.99 × 338,012.16
  4. Step 4: Simplify right side
    811,437.51x = 411,451,039,176.82
  5. Step 5: Solve for x
    x = 411,451,039,176.82/811,437.51
  6. Step 6: Final answer
    x = 507,064.35

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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.