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Finding the Fourth Proportional to 557,189.86, 768,900.45 and 302,535.22

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Solution

The fourth proportional to 557,189.86, 768,900.45 and 302,535.22 is: 417,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,189.86 : 768,900.45 = 302,535.22 : x
  2. Step 2: Convert to fraction form
    557,189.86/768,900.45 = 302,535.22/x
  3. Step 3: Cross multiply
    557,189.86x = 768,900.45 × 302,535.22
  4. Step 4: Simplify right side
    557,189.86x = 232,619,466,798.85
  5. Step 5: Solve for x
    x = 232,619,466,798.85/557,189.86
  6. Step 6: Final answer
    x = 417,486.90

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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.