Home / 1,267,648.77-1,749,356.85-686,871.45

Finding the Fourth Proportional to 1,267,648.77, 1,749,356.85 and 686,871.45

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Solution

The fourth proportional to 1,267,648.77, 1,749,356.85 and 686,871.45 is: 947,883.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,648.77 : 1,749,356.85 = 686,871.45 : x
  2. Step 2: Convert to fraction form
    1,267,648.77/1,749,356.85 = 686,871.45/x
  3. Step 3: Cross multiply
    1,267,648.77x = 1,749,356.85 × 686,871.45
  4. Step 4: Simplify right side
    1,267,648.77x = 1,201,583,276,126.93
  5. Step 5: Solve for x
    x = 1,201,583,276,126.93/1,267,648.77
  6. Step 6: Final answer
    x = 947,883.44

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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.