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Finding the Fourth Proportional to 535,087, 738,420.06 and 308,732.50

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Solution

The fourth proportional to 535,087, 738,420.06 and 308,732.50 is: 426,050.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,087 : 738,420.06 = 308,732.50 : x
  2. Step 2: Convert to fraction form
    535,087/738,420.06 = 308,732.50/x
  3. Step 3: Cross multiply
    535,087x = 738,420.06 × 308,732.50
  4. Step 4: Simplify right side
    535,087x = 227,974,271,173.95
  5. Step 5: Solve for x
    x = 227,974,271,173.95/535,087
  6. Step 6: Final answer
    x = 426,050.85

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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.