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Finding the Fourth Proportional to 885,737.80, 1,328,801.10 and 436,673.80

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Solution

The fourth proportional to 885,737.80, 1,328,801.10 and 436,673.80 is: 655,106.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,737.80 : 1,328,801.10 = 436,673.80 : x
  2. Step 2: Convert to fraction form
    885,737.80/1,328,801.10 = 436,673.80/x
  3. Step 3: Cross multiply
    885,737.80x = 1,328,801.10 × 436,673.80
  4. Step 4: Simplify right side
    885,737.80x = 580,252,625,781.18
  5. Step 5: Solve for x
    x = 580,252,625,781.18/885,737.80
  6. Step 6: Final answer
    x = 655,106.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.