Home / 870,079.30-1,200,717.63-488,114.28

Finding the Fourth Proportional to 870,079.30, 1,200,717.63 and 488,114.28

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Solution

The fourth proportional to 870,079.30, 1,200,717.63 and 488,114.28 is: 673,602.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,079.30 : 1,200,717.63 = 488,114.28 : x
  2. Step 2: Convert to fraction form
    870,079.30/1,200,717.63 = 488,114.28/x
  3. Step 3: Cross multiply
    870,079.30x = 1,200,717.63 × 488,114.28
  4. Step 4: Simplify right side
    870,079.30x = 586,087,419,620.33
  5. Step 5: Solve for x
    x = 586,087,419,620.33/870,079.30
  6. Step 6: Final answer
    x = 673,602.30

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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.