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Finding the Fourth Proportional to 480,570.30, 663,218.28 and 276,646.32

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Solution

The fourth proportional to 480,570.30, 663,218.28 and 276,646.32 is: 381,789.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,570.30 : 663,218.28 = 276,646.32 : x
  2. Step 2: Convert to fraction form
    480,570.30/663,218.28 = 276,646.32/x
  3. Step 3: Cross multiply
    480,570.30x = 663,218.28 × 276,646.32
  4. Step 4: Simplify right side
    480,570.30x = 183,476,896,518.73
  5. Step 5: Solve for x
    x = 183,476,896,518.73/480,570.30
  6. Step 6: Final answer
    x = 381,789.92

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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.