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Finding the Fourth Proportional to 612,106.07, 918,314.62 and 359,600.04

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Solution

The fourth proportional to 612,106.07, 918,314.62 and 359,600.04 is: 539,491.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,106.07 : 918,314.62 = 359,600.04 : x
  2. Step 2: Convert to fraction form
    612,106.07/918,314.62 = 359,600.04/x
  3. Step 3: Cross multiply
    612,106.07x = 918,314.62 × 359,600.04
  4. Step 4: Simplify right side
    612,106.07x = 330,225,973,185.59
  5. Step 5: Solve for x
    x = 330,225,973,185.59/612,106.07
  6. Step 6: Final answer
    x = 539,491.42

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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.