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Finding the Fourth Proportional to 507,901.20, 761,074.20 and 479,907.60

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Solution

The fourth proportional to 507,901.20, 761,074.20 and 479,907.60 is: 719,126.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,901.20 : 761,074.20 = 479,907.60 : x
  2. Step 2: Convert to fraction form
    507,901.20/761,074.20 = 479,907.60/x
  3. Step 3: Cross multiply
    507,901.20x = 761,074.20 × 479,907.60
  4. Step 4: Simplify right side
    507,901.20x = 365,245,292,743.92
  5. Step 5: Solve for x
    x = 365,245,292,743.92/507,901.20
  6. Step 6: Final answer
    x = 719,126.66

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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.