Home / 852,140.63-1,175,991.60-489,678.18

Finding the Fourth Proportional to 852,140.63, 1,175,991.60 and 489,678.18

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Solution

The fourth proportional to 852,140.63, 1,175,991.60 and 489,678.18 is: 675,777.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,140.63 : 1,175,991.60 = 489,678.18 : x
  2. Step 2: Convert to fraction form
    852,140.63/1,175,991.60 = 489,678.18/x
  3. Step 3: Cross multiply
    852,140.63x = 1,175,991.60 × 489,678.18
  4. Step 4: Simplify right side
    852,140.63x = 575,857,426,383.29
  5. Step 5: Solve for x
    x = 575,857,426,383.29/852,140.63
  6. Step 6: Final answer
    x = 675,777.46

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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.