Home / 488,948.25-674,751.02-285,140.51

Finding the Fourth Proportional to 488,948.25, 674,751.02 and 285,140.51

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Solution

The fourth proportional to 488,948.25, 674,751.02 and 285,140.51 is: 393,495.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,948.25 : 674,751.02 = 285,140.51 : x
  2. Step 2: Convert to fraction form
    488,948.25/674,751.02 = 285,140.51/x
  3. Step 3: Cross multiply
    488,948.25x = 674,751.02 × 285,140.51
  4. Step 4: Simplify right side
    488,948.25x = 192,398,845,166.36
  5. Step 5: Solve for x
    x = 192,398,845,166.36/488,948.25
  6. Step 6: Final answer
    x = 393,495.31

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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.