Home / 870,468.78-1,201,300.22-488,495.58

Finding the Fourth Proportional to 870,468.78, 1,201,300.22 and 488,495.58

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Solution

The fourth proportional to 870,468.78, 1,201,300.22 and 488,495.58 is: 674,153.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,468.78 : 1,201,300.22 = 488,495.58 : x
  2. Step 2: Convert to fraction form
    870,468.78/1,201,300.22 = 488,495.58/x
  3. Step 3: Cross multiply
    870,468.78x = 1,201,300.22 × 488,495.58
  4. Step 4: Simplify right side
    870,468.78x = 586,829,847,723.03
  5. Step 5: Solve for x
    x = 586,829,847,723.03/870,468.78
  6. Step 6: Final answer
    x = 674,153.81

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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.