Home / 775,890.50-1,070,479.40-469,868.85

Finding the Fourth Proportional to 775,890.50, 1,070,479.40 and 469,868.85

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Solution

The fourth proportional to 775,890.50, 1,070,479.40 and 469,868.85 is: 648,267.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,890.50 : 1,070,479.40 = 469,868.85 : x
  2. Step 2: Convert to fraction form
    775,890.50/1,070,479.40 = 469,868.85/x
  3. Step 3: Cross multiply
    775,890.50x = 1,070,479.40 × 469,868.85
  4. Step 4: Simplify right side
    775,890.50x = 502,984,922,277.35
  5. Step 5: Solve for x
    x = 502,984,922,277.35/775,890.50
  6. Step 6: Final answer
    x = 648,267.93

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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.