Home / 870,868.58-1,201,732.29-488,821.55

Finding the Fourth Proportional to 870,868.58, 1,201,732.29 and 488,821.55

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Solution

The fourth proportional to 870,868.58, 1,201,732.29 and 488,821.55 is: 674,536.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,868.58 : 1,201,732.29 = 488,821.55 : x
  2. Step 2: Convert to fraction form
    870,868.58/1,201,732.29 = 488,821.55/x
  3. Step 3: Cross multiply
    870,868.58x = 1,201,732.29 × 488,821.55
  4. Step 4: Simplify right side
    870,868.58x = 587,432,640,682.85
  5. Step 5: Solve for x
    x = 587,432,640,682.85/870,868.58
  6. Step 6: Final answer
    x = 674,536.50

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1.5x scale

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.