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Finding the Fourth Proportional to 605,802.29, 908,811.45 and 201,018.78

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Solution

The fourth proportional to 605,802.29, 908,811.45 and 201,018.78 is: 301,564.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,802.29 : 908,811.45 = 201,018.78 : x
  2. Step 2: Convert to fraction form
    605,802.29/908,811.45 = 201,018.78/x
  3. Step 3: Cross multiply
    605,802.29x = 908,811.45 × 201,018.78
  4. Step 4: Simplify right side
    605,802.29x = 182,688,168,929.03
  5. Step 5: Solve for x
    x = 182,688,168,929.03/605,802.29
  6. Step 6: Final answer
    x = 301,564.01

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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.