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Finding the Fourth Proportional to 611,820.76, 844,390.50 and 370,105.07

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Solution

The fourth proportional to 611,820.76, 844,390.50 and 370,105.07 is: 510,792.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,820.76 : 844,390.50 = 370,105.07 : x
  2. Step 2: Convert to fraction form
    611,820.76/844,390.50 = 370,105.07/x
  3. Step 3: Cross multiply
    611,820.76x = 844,390.50 × 370,105.07
  4. Step 4: Simplify right side
    611,820.76x = 312,513,202,275.78
  5. Step 5: Solve for x
    x = 312,513,202,275.78/611,820.76
  6. Step 6: Final answer
    x = 510,792.08

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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.