Home / 870,258.40-1,200,977.30-488,313.43

Finding the Fourth Proportional to 870,258.40, 1,200,977.30 and 488,313.43

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Solution

The fourth proportional to 870,258.40, 1,200,977.30 and 488,313.43 is: 673,884.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,258.40 : 1,200,977.30 = 488,313.43 : x
  2. Step 2: Convert to fraction form
    870,258.40/1,200,977.30 = 488,313.43/x
  3. Step 3: Cross multiply
    870,258.40x = 1,200,977.30 × 488,313.43
  4. Step 4: Simplify right side
    870,258.40x = 586,453,344,715.14
  5. Step 5: Solve for x
    x = 586,453,344,715.14/870,258.40
  6. Step 6: Final answer
    x = 673,884.15

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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.