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Finding the Fourth Proportional to 509,697.02, 764,637.72 and 210,010.90

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Solution

The fourth proportional to 509,697.02, 764,637.72 and 210,010.90 is: 315,054.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,697.02 : 764,637.72 = 210,010.90 : x
  2. Step 2: Convert to fraction form
    509,697.02/764,637.72 = 210,010.90/x
  3. Step 3: Cross multiply
    509,697.02x = 764,637.72 × 210,010.90
  4. Step 4: Simplify right side
    509,697.02x = 160,582,255,751.15
  5. Step 5: Solve for x
    x = 160,582,255,751.15/509,697.02
  6. Step 6: Final answer
    x = 315,054.34

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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.