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Finding the Fourth Proportional to 885,748.60, 1,328,622.90 and 805,569.40

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Solution

The fourth proportional to 885,748.60, 1,328,622.90 and 805,569.40 is: 1,208,354.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,748.60 : 1,328,622.90 = 805,569.40 : x
  2. Step 2: Convert to fraction form
    885,748.60/1,328,622.90 = 805,569.40/x
  3. Step 3: Cross multiply
    885,748.60x = 1,328,622.90 × 805,569.40
  4. Step 4: Simplify right side
    885,748.60x = 1,070,297,952,379.26
  5. Step 5: Solve for x
    x = 1,070,297,952,379.26/885,748.60
  6. Step 6: Final answer
    x = 1,208,354.10

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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.