Home / 3,977,320.80-5,965,981.20-2,465,666.40

Finding the Fourth Proportional to 3,977,320.80, 5,965,981.20 and 2,465,666.40

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Solution

The fourth proportional to 3,977,320.80, 5,965,981.20 and 2,465,666.40 is: 3,698,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977,320.80 : 5,965,981.20 = 2,465,666.40 : x
  2. Step 2: Convert to fraction form
    3,977,320.80/5,965,981.20 = 2,465,666.40/x
  3. Step 3: Cross multiply
    3,977,320.80x = 5,965,981.20 × 2,465,666.40
  4. Step 4: Simplify right side
    3,977,320.80x = 14,710,119,387,871.68
  5. Step 5: Solve for x
    x = 14,710,119,387,871.68/3,977,320.80
  6. Step 6: Final answer
    x = 3,698,499.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.