Home / 1,986,925-2,980,831.74-724,752.58

Finding the Fourth Proportional to 1,986,925, 2,980,831.74 and 724,752.58

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Solution

The fourth proportional to 1,986,925, 2,980,831.74 and 724,752.58 is: 1,087,290.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,925 : 2,980,831.74 = 724,752.58 : x
  2. Step 2: Convert to fraction form
    1,986,925/2,980,831.74 = 724,752.58/x
  3. Step 3: Cross multiply
    1,986,925x = 2,980,831.74 × 724,752.58
  4. Step 4: Simplify right side
    1,986,925x = 2,160,365,494,110.89
  5. Step 5: Solve for x
    x = 2,160,365,494,110.89/1,986,925
  6. Step 6: Final answer
    x = 1,087,290.91

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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.