Home / 809,386.98-1,117,401.39-487,176

Finding the Fourth Proportional to 809,386.98, 1,117,401.39 and 487,176

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Solution

The fourth proportional to 809,386.98, 1,117,401.39 and 487,176 is: 672,572.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,386.98 : 1,117,401.39 = 487,176 : x
  2. Step 2: Convert to fraction form
    809,386.98/1,117,401.39 = 487,176/x
  3. Step 3: Cross multiply
    809,386.98x = 1,117,401.39 × 487,176
  4. Step 4: Simplify right side
    809,386.98x = 544,371,139,574.64
  5. Step 5: Solve for x
    x = 544,371,139,574.64/809,386.98
  6. Step 6: Final answer
    x = 672,572.15

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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.