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Finding the Fourth Proportional to 557,452.80, 769,284.72 and 302,803.74

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Solution

The fourth proportional to 557,452.80, 769,284.72 and 302,803.74 is: 417,869.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,452.80 : 769,284.72 = 302,803.74 : x
  2. Step 2: Convert to fraction form
    557,452.80/769,284.72 = 302,803.74/x
  3. Step 3: Cross multiply
    557,452.80x = 769,284.72 × 302,803.74
  4. Step 4: Simplify right side
    557,452.80x = 232,942,290,340.85
  5. Step 5: Solve for x
    x = 232,942,290,340.85/557,452.80
  6. Step 6: Final answer
    x = 417,869.08

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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.