Home / 553,184.22-763,466.94-311,514.06

Finding the Fourth Proportional to 553,184.22, 763,466.94 and 311,514.06

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Solution

The fourth proportional to 553,184.22, 763,466.94 and 311,514.06 is: 429,930.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,184.22 : 763,466.94 = 311,514.06 : x
  2. Step 2: Convert to fraction form
    553,184.22/763,466.94 = 311,514.06/x
  3. Step 3: Cross multiply
    553,184.22x = 763,466.94 × 311,514.06
  4. Step 4: Simplify right side
    553,184.22x = 237,830,686,155.18
  5. Step 5: Solve for x
    x = 237,830,686,155.18/553,184.22
  6. Step 6: Final answer
    x = 429,930.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.