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Finding the Fourth Proportional to 994,108.89, 1,371,909.11 and 564,429

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Solution

The fourth proportional to 994,108.89, 1,371,909.11 and 564,429 is: 778,934.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,108.89 : 1,371,909.11 = 564,429 : x
  2. Step 2: Convert to fraction form
    994,108.89/1,371,909.11 = 564,429/x
  3. Step 3: Cross multiply
    994,108.89x = 1,371,909.11 × 564,429
  4. Step 4: Simplify right side
    994,108.89x = 774,345,284,226.05
  5. Step 5: Solve for x
    x = 774,345,284,226.05/994,108.89
  6. Step 6: Final answer
    x = 778,934.07

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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.