Home / 1,301,636.80-1,954,204.80-830,411.20

Finding the Fourth Proportional to 1,301,636.80, 1,954,204.80 and 830,411.20

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Solution

The fourth proportional to 1,301,636.80, 1,954,204.80 and 830,411.20 is: 1,246,733.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,636.80 : 1,954,204.80 = 830,411.20 : x
  2. Step 2: Convert to fraction form
    1,301,636.80/1,954,204.80 = 830,411.20/x
  3. Step 3: Cross multiply
    1,301,636.80x = 1,954,204.80 × 830,411.20
  4. Step 4: Simplify right side
    1,301,636.80x = 1,622,793,553,013.76
  5. Step 5: Solve for x
    x = 1,622,793,553,013.76/1,301,636.80
  6. Step 6: Final answer
    x = 1,246,733.00

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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.