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Finding the Fourth Proportional to 556,919.86, 768,550.14 and 302,270.98

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Solution

The fourth proportional to 556,919.86, 768,550.14 and 302,270.98 is: 417,134.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,919.86 : 768,550.14 = 302,270.98 : x
  2. Step 2: Convert to fraction form
    556,919.86/768,550.14 = 302,270.98/x
  3. Step 3: Cross multiply
    556,919.86x = 768,550.14 × 302,270.98
  4. Step 4: Simplify right side
    556,919.86x = 232,310,403,996.94
  5. Step 5: Solve for x
    x = 232,310,403,996.94/556,919.86
  6. Step 6: Final answer
    x = 417,134.35

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1.5x scale

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.