Home / 708,643.44-977,933.67-386,355.87

Finding the Fourth Proportional to 708,643.44, 977,933.67 and 386,355.87

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Solution

The fourth proportional to 708,643.44, 977,933.67 and 386,355.87 is: 533,174.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,643.44 : 977,933.67 = 386,355.87 : x
  2. Step 2: Convert to fraction form
    708,643.44/977,933.67 = 386,355.87/x
  3. Step 3: Cross multiply
    708,643.44x = 977,933.67 × 386,355.87
  4. Step 4: Simplify right side
    708,643.44x = 377,830,413,875.14
  5. Step 5: Solve for x
    x = 377,830,413,875.14/708,643.44
  6. Step 6: Final answer
    x = 533,174.22

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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.