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Finding the Fourth Proportional to 898,969.90, 1,348,454.85 and 808,768.30

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Solution

The fourth proportional to 898,969.90, 1,348,454.85 and 808,768.30 is: 1,213,152.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,969.90 : 1,348,454.85 = 808,768.30 : x
  2. Step 2: Convert to fraction form
    898,969.90/1,348,454.85 = 808,768.30/x
  3. Step 3: Cross multiply
    898,969.90x = 1,348,454.85 × 808,768.30
  4. Step 4: Simplify right side
    898,969.90x = 1,090,587,536,661.26
  5. Step 5: Solve for x
    x = 1,090,587,536,661.26/898,969.90
  6. Step 6: Final answer
    x = 1,213,152.45

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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.