Home / 1,280,749.48-1,767,386.64-736,969.36

Finding the Fourth Proportional to 1,280,749.48, 1,767,386.64 and 736,969.36

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Solution

The fourth proportional to 1,280,749.48, 1,767,386.64 and 736,969.36 is: 1,016,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,749.48 : 1,767,386.64 = 736,969.36 : x
  2. Step 2: Convert to fraction form
    1,280,749.48/1,767,386.64 = 736,969.36/x
  3. Step 3: Cross multiply
    1,280,749.48x = 1,767,386.64 × 736,969.36
  4. Step 4: Simplify right side
    1,280,749.48x = 1,302,509,800,953.35
  5. Step 5: Solve for x
    x = 1,302,509,800,953.35/1,280,749.48
  6. Step 6: Final answer
    x = 1,016,990.30

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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.