Home / 708,401.69-977,585.73-386,110.79

Finding the Fourth Proportional to 708,401.69, 977,585.73 and 386,110.79

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Solution

The fourth proportional to 708,401.69, 977,585.73 and 386,110.79 is: 532,828.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,401.69 : 977,585.73 = 386,110.79 : x
  2. Step 2: Convert to fraction form
    708,401.69/977,585.73 = 386,110.79/x
  3. Step 3: Cross multiply
    708,401.69x = 977,585.73 × 386,110.79
  4. Step 4: Simplify right side
    708,401.69x = 377,456,398,503.03
  5. Step 5: Solve for x
    x = 377,456,398,503.03/708,401.69
  6. Step 6: Final answer
    x = 532,828.20

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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.