Home / 764,001.18-1,146,499.29-290,690.46

Finding the Fourth Proportional to 764,001.18, 1,146,499.29 and 290,690.46

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Solution

The fourth proportional to 764,001.18, 1,146,499.29 and 290,690.46 is: 436,224.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,001.18 : 1,146,499.29 = 290,690.46 : x
  2. Step 2: Convert to fraction form
    764,001.18/1,146,499.29 = 290,690.46/x
  3. Step 3: Cross multiply
    764,001.18x = 1,146,499.29 × 290,690.46
  4. Step 4: Simplify right side
    764,001.18x = 333,276,405,999.77
  5. Step 5: Solve for x
    x = 333,276,405,999.77/764,001.18
  6. Step 6: Final answer
    x = 436,224.99

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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.