Home / 1,615,955.80-2,421,017.70-772,648.60

Finding the Fourth Proportional to 1,615,955.80, 2,421,017.70 and 772,648.60

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Solution

The fourth proportional to 1,615,955.80, 2,421,017.70 and 772,648.60 is: 1,157,578.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,955.80 : 2,421,017.70 = 772,648.60 : x
  2. Step 2: Convert to fraction form
    1,615,955.80/2,421,017.70 = 772,648.60/x
  3. Step 3: Cross multiply
    1,615,955.80x = 2,421,017.70 × 772,648.60
  4. Step 4: Simplify right side
    1,615,955.80x = 1,870,595,936,480.22
  5. Step 5: Solve for x
    x = 1,870,595,936,480.22/1,615,955.80
  6. Step 6: Final answer
    x = 1,157,578.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.