Home / 772,120.30-1,159,509.06-738,905.23

Finding the Fourth Proportional to 772,120.30, 1,159,509.06 and 738,905.23

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Solution

The fourth proportional to 772,120.30, 1,159,509.06 and 738,905.23 is: 1,109,629.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,120.30 : 1,159,509.06 = 738,905.23 : x
  2. Step 2: Convert to fraction form
    772,120.30/1,159,509.06 = 738,905.23/x
  3. Step 3: Cross multiply
    772,120.30x = 1,159,509.06 × 738,905.23
  4. Step 4: Simplify right side
    772,120.30x = 856,767,308,666.38
  5. Step 5: Solve for x
    x = 856,767,308,666.38/772,120.30
  6. Step 6: Final answer
    x = 1,109,629.30

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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.