Home / 851,045.79-1,174,448.26-488,460.36

Finding the Fourth Proportional to 851,045.79, 1,174,448.26 and 488,460.36

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Solution

The fourth proportional to 851,045.79, 1,174,448.26 and 488,460.36 is: 674,078.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,045.79 : 1,174,448.26 = 488,460.36 : x
  2. Step 2: Convert to fraction form
    851,045.79/1,174,448.26 = 488,460.36/x
  3. Step 3: Cross multiply
    851,045.79x = 1,174,448.26 × 488,460.36
  4. Step 4: Simplify right side
    851,045.79x = 573,671,419,880.97
  5. Step 5: Solve for x
    x = 573,671,419,880.97/851,045.79
  6. Step 6: Final answer
    x = 674,078.21

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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.