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Finding the Fourth Proportional to 550,895.08, 760,172.58 and 309,127.72

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Solution

The fourth proportional to 550,895.08, 760,172.58 and 309,127.72 is: 426,561.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,895.08 : 760,172.58 = 309,127.72 : x
  2. Step 2: Convert to fraction form
    550,895.08/760,172.58 = 309,127.72/x
  3. Step 3: Cross multiply
    550,895.08x = 760,172.58 × 309,127.72
  4. Step 4: Simplify right side
    550,895.08x = 234,990,416,461.92
  5. Step 5: Solve for x
    x = 234,990,416,461.92/550,895.08
  6. Step 6: Final answer
    x = 426,561.11

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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.