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Finding the Fourth Proportional to 553,669.95, 830,504.93 and 543,172.35

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Solution

The fourth proportional to 553,669.95, 830,504.93 and 543,172.35 is: 814,758.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,669.95 : 830,504.93 = 543,172.35 : x
  2. Step 2: Convert to fraction form
    553,669.95/830,504.93 = 543,172.35/x
  3. Step 3: Cross multiply
    553,669.95x = 830,504.93 × 543,172.35
  4. Step 4: Simplify right side
    553,669.95x = 451,107,311,798.82
  5. Step 5: Solve for x
    x = 451,107,311,798.82/553,669.95
  6. Step 6: Final answer
    x = 814,758.53

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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.