Home / 870,436.64-1,201,288.84-488,464.92

Finding the Fourth Proportional to 870,436.64, 1,201,288.84 and 488,464.92

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Solution

The fourth proportional to 870,436.64, 1,201,288.84 and 488,464.92 is: 674,130.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,436.64 : 1,201,288.84 = 488,464.92 : x
  2. Step 2: Convert to fraction form
    870,436.64/1,201,288.84 = 488,464.92/x
  3. Step 3: Cross multiply
    870,436.64x = 1,201,288.84 × 488,464.92
  4. Step 4: Simplify right side
    870,436.64x = 586,787,457,127.49
  5. Step 5: Solve for x
    x = 586,787,457,127.49/870,436.64
  6. Step 6: Final answer
    x = 674,130.01

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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.