Home / 783,813.12-1,081,547.52-461,333.76

Finding the Fourth Proportional to 783,813.12, 1,081,547.52 and 461,333.76

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Solution

The fourth proportional to 783,813.12, 1,081,547.52 and 461,333.76 is: 636,573.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,813.12 : 1,081,547.52 = 461,333.76 : x
  2. Step 2: Convert to fraction form
    783,813.12/1,081,547.52 = 461,333.76/x
  3. Step 3: Cross multiply
    783,813.12x = 1,081,547.52 × 461,333.76
  4. Step 4: Simplify right side
    783,813.12x = 498,954,384,020.28
  5. Step 5: Solve for x
    x = 498,954,384,020.28/783,813.12
  6. Step 6: Final answer
    x = 636,573.15

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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.