Home / 708,338.49-977,478.66-386,041.68

Finding the Fourth Proportional to 708,338.49, 977,478.66 and 386,041.68

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Solution

The fourth proportional to 708,338.49, 977,478.66 and 386,041.68 is: 532,722.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,338.49 : 977,478.66 = 386,041.68 : x
  2. Step 2: Convert to fraction form
    708,338.49/977,478.66 = 386,041.68/x
  3. Step 3: Cross multiply
    708,338.49x = 977,478.66 × 386,041.68
  4. Step 4: Simplify right side
    708,338.49x = 377,347,504,070.55
  5. Step 5: Solve for x
    x = 377,347,504,070.55/708,338.49
  6. Step 6: Final answer
    x = 532,722.01

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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.