Home / 764,631.16-1,055,483.58-509,889.40

Finding the Fourth Proportional to 764,631.16, 1,055,483.58 and 509,889.40

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Solution

The fourth proportional to 764,631.16, 1,055,483.58 and 509,889.40 is: 703,842.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,631.16 : 1,055,483.58 = 509,889.40 : x
  2. Step 2: Convert to fraction form
    764,631.16/1,055,483.58 = 509,889.40/x
  3. Step 3: Cross multiply
    764,631.16x = 1,055,483.58 × 509,889.40
  4. Step 4: Simplify right side
    764,631.16x = 538,179,889,316.05
  5. Step 5: Solve for x
    x = 538,179,889,316.05/764,631.16
  6. Step 6: Final answer
    x = 703,842.48

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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.