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Finding the Fourth Proportional to 885,737.60, 1,328,606.40 and 808,323.20

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Solution

The fourth proportional to 885,737.60, 1,328,606.40 and 808,323.20 is: 1,212,484.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,737.60 : 1,328,606.40 = 808,323.20 : x
  2. Step 2: Convert to fraction form
    885,737.60/1,328,606.40 = 808,323.20/x
  3. Step 3: Cross multiply
    885,737.60x = 1,328,606.40 × 808,323.20
  4. Step 4: Simplify right side
    885,737.60x = 1,073,943,376,788.48
  5. Step 5: Solve for x
    x = 1,073,943,376,788.48/885,737.60
  6. Step 6: Final answer
    x = 1,212,484.80

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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.