Home / 551,298.20-760,782.58-306,277.66

Finding the Fourth Proportional to 551,298.20, 760,782.58 and 306,277.66

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Solution

The fourth proportional to 551,298.20, 760,782.58 and 306,277.66 is: 422,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,298.20 : 760,782.58 = 306,277.66 : x
  2. Step 2: Convert to fraction form
    551,298.20/760,782.58 = 306,277.66/x
  3. Step 3: Cross multiply
    551,298.20x = 760,782.58 × 306,277.66
  4. Step 4: Simplify right side
    551,298.20x = 233,010,704,277.05
  5. Step 5: Solve for x
    x = 233,010,704,277.05/551,298.20
  6. Step 6: Final answer
    x = 422,658.20

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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.