Home / 801,156.42-1,105,242.57-478,705.14

Finding the Fourth Proportional to 801,156.42, 1,105,242.57 and 478,705.14

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Solution

The fourth proportional to 801,156.42, 1,105,242.57 and 478,705.14 is: 660,402.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,156.42 : 1,105,242.57 = 478,705.14 : x
  2. Step 2: Convert to fraction form
    801,156.42/1,105,242.57 = 478,705.14/x
  3. Step 3: Cross multiply
    801,156.42x = 1,105,242.57 × 478,705.14
  4. Step 4: Simplify right side
    801,156.42x = 529,085,299,205.81
  5. Step 5: Solve for x
    x = 529,085,299,205.81/801,156.42
  6. Step 6: Final answer
    x = 660,402.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.