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Finding the Fourth Proportional to 564,192.86, 778,638.87 and 322,428.21

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Solution

The fourth proportional to 564,192.86, 778,638.87 and 322,428.21 is: 444,981.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,192.86 : 778,638.87 = 322,428.21 : x
  2. Step 2: Convert to fraction form
    564,192.86/778,638.87 = 322,428.21/x
  3. Step 3: Cross multiply
    564,192.86x = 778,638.87 × 322,428.21
  4. Step 4: Simplify right side
    564,192.86x = 251,055,137,090.52
  5. Step 5: Solve for x
    x = 251,055,137,090.52/564,192.86
  6. Step 6: Final answer
    x = 444,981.06

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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.