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Finding the Fourth Proportional to 605,105.28, 907,368.48 and 352,457.80

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Solution

The fourth proportional to 605,105.28, 907,368.48 and 352,457.80 is: 528,518.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,105.28 : 907,368.48 = 352,457.80 : x
  2. Step 2: Convert to fraction form
    605,105.28/907,368.48 = 352,457.80/x
  3. Step 3: Cross multiply
    605,105.28x = 907,368.48 × 352,457.80
  4. Step 4: Simplify right side
    605,105.28x = 319,809,095,981.72
  5. Step 5: Solve for x
    x = 319,809,095,981.72/605,105.28
  6. Step 6: Final answer
    x = 528,518.11

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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.