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Finding the Fourth Proportional to 564,844.01, 779,484.73 and 310,195.20

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Solution

The fourth proportional to 564,844.01, 779,484.73 and 310,195.20 is: 428,069.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,844.01 : 779,484.73 = 310,195.20 : x
  2. Step 2: Convert to fraction form
    564,844.01/779,484.73 = 310,195.20/x
  3. Step 3: Cross multiply
    564,844.01x = 779,484.73 × 310,195.20
  4. Step 4: Simplify right side
    564,844.01x = 241,792,418,307.80
  5. Step 5: Solve for x
    x = 241,792,418,307.80/564,844.01
  6. Step 6: Final answer
    x = 428,069.37

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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.