Home / 1,420,509.50-1,960,291.50-775,929.86

Finding the Fourth Proportional to 1,420,509.50, 1,960,291.50 and 775,929.86

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Solution

The fourth proportional to 1,420,509.50, 1,960,291.50 and 775,929.86 is: 1,070,776.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,509.50 : 1,960,291.50 = 775,929.86 : x
  2. Step 2: Convert to fraction form
    1,420,509.50/1,960,291.50 = 775,929.86/x
  3. Step 3: Cross multiply
    1,420,509.50x = 1,960,291.50 × 775,929.86
  4. Step 4: Simplify right side
    1,420,509.50x = 1,521,048,709,154.19
  5. Step 5: Solve for x
    x = 1,521,048,709,154.19/1,420,509.50
  6. Step 6: Final answer
    x = 1,070,776.87

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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.