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Finding the Fourth Proportional to 564,760.25, 779,374.62 and 310,116.91

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Solution

The fourth proportional to 564,760.25, 779,374.62 and 310,116.91 is: 427,964.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,760.25 : 779,374.62 = 310,116.91 : x
  2. Step 2: Convert to fraction form
    564,760.25/779,374.62 = 310,116.91/x
  3. Step 3: Cross multiply
    564,760.25x = 779,374.62 × 310,116.91
  4. Step 4: Simplify right side
    564,760.25x = 241,697,248,886.82
  5. Step 5: Solve for x
    x = 241,697,248,886.82/564,760.25
  6. Step 6: Final answer
    x = 427,964.34

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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.