Home / 811,458.56-1,217,298.60-338,033.18

Finding the Fourth Proportional to 811,458.56, 1,217,298.60 and 338,033.18

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Solution

The fourth proportional to 811,458.56, 1,217,298.60 and 338,033.18 is: 507,095.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,458.56 : 1,217,298.60 = 338,033.18 : x
  2. Step 2: Convert to fraction form
    811,458.56/1,217,298.60 = 338,033.18/x
  3. Step 3: Cross multiply
    811,458.56x = 1,217,298.60 × 338,033.18
  4. Step 4: Simplify right side
    811,458.56x = 411,487,316,767.55
  5. Step 5: Solve for x
    x = 411,487,316,767.55/811,458.56
  6. Step 6: Final answer
    x = 507,095.91

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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.