Home / 987,547.80-1,362,899.88-557,906.80

Finding the Fourth Proportional to 987,547.80, 1,362,899.88 and 557,906.80

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Solution

The fourth proportional to 987,547.80, 1,362,899.88 and 557,906.80 is: 769,958.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,547.80 : 1,362,899.88 = 557,906.80 : x
  2. Step 2: Convert to fraction form
    987,547.80/1,362,899.88 = 557,906.80/x
  3. Step 3: Cross multiply
    987,547.80x = 1,362,899.88 × 557,906.80
  4. Step 4: Simplify right side
    987,547.80x = 760,371,110,771.18
  5. Step 5: Solve for x
    x = 760,371,110,771.18/987,547.80
  6. Step 6: Final answer
    x = 769,958.79

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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.