Home / 1,230,649.29-1,698,381.27-686,891.16

Finding the Fourth Proportional to 1,230,649.29, 1,698,381.27 and 686,891.16

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Solution

The fourth proportional to 1,230,649.29, 1,698,381.27 and 686,891.16 is: 947,957.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,649.29 : 1,698,381.27 = 686,891.16 : x
  2. Step 2: Convert to fraction form
    1,230,649.29/1,698,381.27 = 686,891.16/x
  3. Step 3: Cross multiply
    1,230,649.29x = 1,698,381.27 × 686,891.16
  4. Step 4: Simplify right side
    1,230,649.29x = 1,166,603,080,672.57
  5. Step 5: Solve for x
    x = 1,166,603,080,672.57/1,230,649.29
  6. Step 6: Final answer
    x = 947,957.38

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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.