Home / 870,856.08-1,201,770.84-488,873.04

Finding the Fourth Proportional to 870,856.08, 1,201,770.84 and 488,873.04

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Solution

The fourth proportional to 870,856.08, 1,201,770.84 and 488,873.04 is: 674,638.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,856.08 : 1,201,770.84 = 488,873.04 : x
  2. Step 2: Convert to fraction form
    870,856.08/1,201,770.84 = 488,873.04/x
  3. Step 3: Cross multiply
    870,856.08x = 1,201,770.84 × 488,873.04
  4. Step 4: Simplify right side
    870,856.08x = 587,513,363,934.15
  5. Step 5: Solve for x
    x = 587,513,363,934.15/870,856.08
  6. Step 6: Final answer
    x = 674,638.87

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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.