Home / 708,343.87-977,486.07-386,047.06

Finding the Fourth Proportional to 708,343.87, 977,486.07 and 386,047.06

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Solution

The fourth proportional to 708,343.87, 977,486.07 and 386,047.06 is: 532,729.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,343.87 : 977,486.07 = 386,047.06 : x
  2. Step 2: Convert to fraction form
    708,343.87/977,486.07 = 386,047.06/x
  3. Step 3: Cross multiply
    708,343.87x = 977,486.07 × 386,047.06
  4. Step 4: Simplify right side
    708,343.87x = 377,355,623,514.45
  5. Step 5: Solve for x
    x = 377,355,623,514.45/708,343.87
  6. Step 6: Final answer
    x = 532,729.43

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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.