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Finding the Fourth Proportional to 680,750.28, 939,692.46 and 535,176.30

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Solution

The fourth proportional to 680,750.28, 939,692.46 and 535,176.30 is: 738,745.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,750.28 : 939,692.46 = 535,176.30 : x
  2. Step 2: Convert to fraction form
    680,750.28/939,692.46 = 535,176.30/x
  3. Step 3: Cross multiply
    680,750.28x = 939,692.46 × 535,176.30
  4. Step 4: Simplify right side
    680,750.28x = 502,901,133,880.70
  5. Step 5: Solve for x
    x = 502,901,133,880.70/680,750.28
  6. Step 6: Final answer
    x = 738,745.39

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1.5x scale

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.