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Finding the Fourth Proportional to 902,886.90, 1,354,330.35 and 804,909.30

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Solution

The fourth proportional to 902,886.90, 1,354,330.35 and 804,909.30 is: 1,207,363.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,886.90 : 1,354,330.35 = 804,909.30 : x
  2. Step 2: Convert to fraction form
    902,886.90/1,354,330.35 = 804,909.30/x
  3. Step 3: Cross multiply
    902,886.90x = 1,354,330.35 × 804,909.30
  4. Step 4: Simplify right side
    902,886.90x = 1,090,113,093,987.26
  5. Step 5: Solve for x
    x = 1,090,113,093,987.26/902,886.90
  6. Step 6: Final answer
    x = 1,207,363.95

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Double scale
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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.