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Finding the Fourth Proportional to 556,818.55, 768,410.07 and 302,169.71

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Solution

The fourth proportional to 556,818.55, 768,410.07 and 302,169.71 is: 416,994.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,818.55 : 768,410.07 = 302,169.71 : x
  2. Step 2: Convert to fraction form
    556,818.55/768,410.07 = 302,169.71/x
  3. Step 3: Cross multiply
    556,818.55x = 768,410.07 × 302,169.71
  4. Step 4: Simplify right side
    556,818.55x = 232,190,248,012.98
  5. Step 5: Solve for x
    x = 232,190,248,012.98/556,818.55
  6. Step 6: Final answer
    x = 416,994.46

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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.