Home / 987,547.44-1,363,402.79-625,281.83

Finding the Fourth Proportional to 987,547.44, 1,363,402.79 and 625,281.83

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Solution

The fourth proportional to 987,547.44, 1,363,402.79 and 625,281.83 is: 863,260.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,547.44 : 1,363,402.79 = 625,281.83 : x
  2. Step 2: Convert to fraction form
    987,547.44/1,363,402.79 = 625,281.83/x
  3. Step 3: Cross multiply
    987,547.44x = 1,363,402.79 × 625,281.83
  4. Step 4: Simplify right side
    987,547.44x = 852,510,989,072.45
  5. Step 5: Solve for x
    x = 852,510,989,072.45/987,547.44
  6. Step 6: Final answer
    x = 863,260.79

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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.