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Finding the Fourth Proportional to 556,766.85, 768,340.32 and 302,118.06

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Solution

The fourth proportional to 556,766.85, 768,340.32 and 302,118.06 is: 416,924.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,766.85 : 768,340.32 = 302,118.06 : x
  2. Step 2: Convert to fraction form
    556,766.85/768,340.32 = 302,118.06/x
  3. Step 3: Cross multiply
    556,766.85x = 768,340.32 × 302,118.06
  4. Step 4: Simplify right side
    556,766.85x = 232,129,486,898.18
  5. Step 5: Solve for x
    x = 232,129,486,898.18/556,766.85
  6. Step 6: Final answer
    x = 416,924.04

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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.