Home / 987,547.89-1,363,403.43-625,282.28

Finding the Fourth Proportional to 987,547.89, 1,363,403.43 and 625,282.28

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Solution

The fourth proportional to 987,547.89, 1,363,403.43 and 625,282.28 is: 863,261.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,547.89 : 1,363,403.43 = 625,282.28 : x
  2. Step 2: Convert to fraction form
    987,547.89/1,363,403.43 = 625,282.28/x
  3. Step 3: Cross multiply
    987,547.89x = 1,363,403.43 × 625,282.28
  4. Step 4: Simplify right side
    987,547.89x = 852,511,998,453.20
  5. Step 5: Solve for x
    x = 852,511,998,453.20/987,547.89
  6. Step 6: Final answer
    x = 863,261.42

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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.