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Finding the Fourth Proportional to 556,934.82, 768,560.40 and 302,280.54

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Solution

The fourth proportional to 556,934.82, 768,560.40 and 302,280.54 is: 417,141.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,934.82 : 768,560.40 = 302,280.54 : x
  2. Step 2: Convert to fraction form
    556,934.82/768,560.40 = 302,280.54/x
  3. Step 3: Cross multiply
    556,934.82x = 768,560.40 × 302,280.54
  4. Step 4: Simplify right side
    556,934.82x = 232,320,852,734.62
  5. Step 5: Solve for x
    x = 232,320,852,734.62/556,934.82
  6. Step 6: Final answer
    x = 417,141.91

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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.