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Finding the Fourth Proportional to 843,998.45, 1,164,717.77 and 456,813.80

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Solution

The fourth proportional to 843,998.45, 1,164,717.77 and 456,813.80 is: 630,403.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,998.45 : 1,164,717.77 = 456,813.80 : x
  2. Step 2: Convert to fraction form
    843,998.45/1,164,717.77 = 456,813.80/x
  3. Step 3: Cross multiply
    843,998.45x = 1,164,717.77 × 456,813.80
  4. Step 4: Simplify right side
    843,998.45x = 532,059,151,068.95
  5. Step 5: Solve for x
    x = 532,059,151,068.95/843,998.45
  6. Step 6: Final answer
    x = 630,403.00

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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.