Home / 988,303.06-1,364,004.48-625,760.56

Finding the Fourth Proportional to 988,303.06, 1,364,004.48 and 625,760.56

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Solution

The fourth proportional to 988,303.06, 1,364,004.48 and 625,760.56 is: 863,642.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,303.06 : 1,364,004.48 = 625,760.56 : x
  2. Step 2: Convert to fraction form
    988,303.06/1,364,004.48 = 625,760.56/x
  3. Step 3: Cross multiply
    988,303.06x = 1,364,004.48 × 625,760.56
  4. Step 4: Simplify right side
    988,303.06x = 853,540,207,247.31
  5. Step 5: Solve for x
    x = 853,540,207,247.31/988,303.06
  6. Step 6: Final answer
    x = 863,642.18

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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.