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Finding the Fourth Proportional to 520,907.02, 781,390.78 and 201,060.70

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Solution

The fourth proportional to 520,907.02, 781,390.78 and 201,060.70 is: 301,602.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,907.02 : 781,390.78 = 201,060.70 : x
  2. Step 2: Convert to fraction form
    520,907.02/781,390.78 = 201,060.70/x
  3. Step 3: Cross multiply
    520,907.02x = 781,390.78 × 201,060.70
  4. Step 4: Simplify right side
    520,907.02x = 157,106,977,200.35
  5. Step 5: Solve for x
    x = 157,106,977,200.35/520,907.02
  6. Step 6: Final answer
    x = 301,602.73

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1.5x scale

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.