Home / 708,390.93-977,580.23-386,101.29

Finding the Fourth Proportional to 708,390.93, 977,580.23 and 386,101.29

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Solution

The fourth proportional to 708,390.93, 977,580.23 and 386,101.29 is: 532,820.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,390.93 : 977,580.23 = 386,101.29 : x
  2. Step 2: Convert to fraction form
    708,390.93/977,580.23 = 386,101.29/x
  3. Step 3: Cross multiply
    708,390.93x = 977,580.23 × 386,101.29
  4. Step 4: Simplify right side
    708,390.93x = 377,444,985,950.99
  5. Step 5: Solve for x
    x = 377,444,985,950.99/708,390.93
  6. Step 6: Final answer
    x = 532,820.18

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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.