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Finding the Fourth Proportional to 564,644.88, 779,185.44 and 310,000.32

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Solution

The fourth proportional to 564,644.88, 779,185.44 and 310,000.32 is: 427,786.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,644.88 : 779,185.44 = 310,000.32 : x
  2. Step 2: Convert to fraction form
    564,644.88/779,185.44 = 310,000.32/x
  3. Step 3: Cross multiply
    564,644.88x = 779,185.44 × 310,000.32
  4. Step 4: Simplify right side
    564,644.88x = 241,547,735,739.34
  5. Step 5: Solve for x
    x = 241,547,735,739.34/564,644.88
  6. Step 6: Final answer
    x = 427,786.99

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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.