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Finding the Fourth Proportional to 611,121.48, 915,353.82 and 373,746.12

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Solution

The fourth proportional to 611,121.48, 915,353.82 and 373,746.12 is: 559,806.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,121.48 : 915,353.82 = 373,746.12 : x
  2. Step 2: Convert to fraction form
    611,121.48/915,353.82 = 373,746.12/x
  3. Step 3: Cross multiply
    611,121.48x = 915,353.82 × 373,746.12
  4. Step 4: Simplify right side
    611,121.48x = 342,109,938,652.18
  5. Step 5: Solve for x
    x = 342,109,938,652.18/611,121.48
  6. Step 6: Final answer
    x = 559,806.76

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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.