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Finding the Fourth Proportional to 563,989.56, 778,345.17 and 322,307.85

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Solution

The fourth proportional to 563,989.56, 778,345.17 and 322,307.85 is: 444,807.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,989.56 : 778,345.17 = 322,307.85 : x
  2. Step 2: Convert to fraction form
    563,989.56/778,345.17 = 322,307.85/x
  3. Step 3: Cross multiply
    563,989.56x = 778,345.17 × 322,307.85
  4. Step 4: Simplify right side
    563,989.56x = 250,866,758,300.59
  5. Step 5: Solve for x
    x = 250,866,758,300.59/563,989.56
  6. Step 6: Final answer
    x = 444,807.45

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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.