Home / 1,280,400.48-1,766,905.04-707,428.32

Finding the Fourth Proportional to 1,280,400.48, 1,766,905.04 and 707,428.32

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Solution

The fourth proportional to 1,280,400.48, 1,766,905.04 and 707,428.32 is: 976,224.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,400.48 : 1,766,905.04 = 707,428.32 : x
  2. Step 2: Convert to fraction form
    1,280,400.48/1,766,905.04 = 707,428.32/x
  3. Step 3: Cross multiply
    1,280,400.48x = 1,766,905.04 × 707,428.32
  4. Step 4: Simplify right side
    1,280,400.48x = 1,249,958,664,046.73
  5. Step 5: Solve for x
    x = 1,249,958,664,046.73/1,280,400.48
  6. Step 6: Final answer
    x = 976,224.77

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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.