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Finding the Fourth Proportional to 887,733, 1,225,075.86 and 485,325

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Solution

The fourth proportional to 887,733, 1,225,075.86 and 485,325 is: 669,750.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,733 : 1,225,075.86 = 485,325 : x
  2. Step 2: Convert to fraction form
    887,733/1,225,075.86 = 485,325/x
  3. Step 3: Cross multiply
    887,733x = 1,225,075.86 × 485,325
  4. Step 4: Simplify right side
    887,733x = 594,559,941,754.50
  5. Step 5: Solve for x
    x = 594,559,941,754.50/887,733
  6. Step 6: Final answer
    x = 669,750.86

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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.