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Finding the Fourth Proportional to 564,966.80, 779,659.80 and 306,848.78

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Solution

The fourth proportional to 564,966.80, 779,659.80 and 306,848.78 is: 423,454.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,966.80 : 779,659.80 = 306,848.78 : x
  2. Step 2: Convert to fraction form
    564,966.80/779,659.80 = 306,848.78/x
  3. Step 3: Cross multiply
    564,966.80x = 779,659.80 × 306,848.78
  4. Step 4: Simplify right side
    564,966.80x = 239,237,658,445.04
  5. Step 5: Solve for x
    x = 239,237,658,445.04/564,966.80
  6. Step 6: Final answer
    x = 423,454.37

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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.