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Finding the Fourth Proportional to 902,903.90, 1,354,355.85 and 804,926.30

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Solution

The fourth proportional to 902,903.90, 1,354,355.85 and 804,926.30 is: 1,207,389.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,903.90 : 1,354,355.85 = 804,926.30 : x
  2. Step 2: Convert to fraction form
    902,903.90/1,354,355.85 = 804,926.30/x
  3. Step 3: Cross multiply
    902,903.90x = 1,354,355.85 × 804,926.30
  4. Step 4: Simplify right side
    902,903.90x = 1,090,156,643,223.86
  5. Step 5: Solve for x
    x = 1,090,156,643,223.86/902,903.90
  6. Step 6: Final answer
    x = 1,207,389.45

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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.