Home / 764,337.06-1,054,798.56-420,187.50

Finding the Fourth Proportional to 764,337.06, 1,054,798.56 and 420,187.50

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Solution

The fourth proportional to 764,337.06, 1,054,798.56 and 420,187.50 is: 579,866.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,337.06 : 1,054,798.56 = 420,187.50 : x
  2. Step 2: Convert to fraction form
    764,337.06/1,054,798.56 = 420,187.50/x
  3. Step 3: Cross multiply
    764,337.06x = 1,054,798.56 × 420,187.50
  4. Step 4: Simplify right side
    764,337.06x = 443,213,169,930
  5. Step 5: Solve for x
    x = 443,213,169,930/764,337.06
  6. Step 6: Final answer
    x = 579,866.13

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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.