Home / 1,128,902.40-1,691,971.20-497,145.60

Finding the Fourth Proportional to 1,128,902.40, 1,691,971.20 and 497,145.60

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Solution

The fourth proportional to 1,128,902.40, 1,691,971.20 and 497,145.60 is: 745,109.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,902.40 : 1,691,971.20 = 497,145.60 : x
  2. Step 2: Convert to fraction form
    1,128,902.40/1,691,971.20 = 497,145.60/x
  3. Step 3: Cross multiply
    1,128,902.40x = 1,691,971.20 × 497,145.60
  4. Step 4: Simplify right side
    1,128,902.40x = 841,156,037,406.72
  5. Step 5: Solve for x
    x = 841,156,037,406.72/1,128,902.40
  6. Step 6: Final answer
    x = 745,109.62

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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.