Home / 870,984.46-1,201,927.57-489,027.34

Finding the Fourth Proportional to 870,984.46, 1,201,927.57 and 489,027.34

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Solution

The fourth proportional to 870,984.46, 1,201,927.57 and 489,027.34 is: 674,840.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,984.46 : 1,201,927.57 = 489,027.34 : x
  2. Step 2: Convert to fraction form
    870,984.46/1,201,927.57 = 489,027.34/x
  3. Step 3: Cross multiply
    870,984.46x = 1,201,927.57 × 489,027.34
  4. Step 4: Simplify right side
    870,984.46x = 587,775,442,429.76
  5. Step 5: Solve for x
    x = 587,775,442,429.76/870,984.46
  6. Step 6: Final answer
    x = 674,840.33

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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.