Home / 870,434.13-1,201,285.41-488,462.43

Finding the Fourth Proportional to 870,434.13, 1,201,285.41 and 488,462.43

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Solution

The fourth proportional to 870,434.13, 1,201,285.41 and 488,462.43 is: 674,126.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,434.13 : 1,201,285.41 = 488,462.43 : x
  2. Step 2: Convert to fraction form
    870,434.13/1,201,285.41 = 488,462.43/x
  3. Step 3: Cross multiply
    870,434.13x = 1,201,285.41 × 488,462.43
  4. Step 4: Simplify right side
    870,434.13x = 586,782,790,492.15
  5. Step 5: Solve for x
    x = 586,782,790,492.15/870,434.13
  6. Step 6: Final answer
    x = 674,126.59

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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.