Home / 646,943.07-892,785.10-375,172.33

Finding the Fourth Proportional to 646,943.07, 892,785.10 and 375,172.33

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Solution

The fourth proportional to 646,943.07, 892,785.10 and 375,172.33 is: 517,739.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,943.07 : 892,785.10 = 375,172.33 : x
  2. Step 2: Convert to fraction form
    646,943.07/892,785.10 = 375,172.33/x
  3. Step 3: Cross multiply
    646,943.07x = 892,785.10 × 375,172.33
  4. Step 4: Simplify right side
    646,943.07x = 334,948,262,986.39
  5. Step 5: Solve for x
    x = 334,948,262,986.39/646,943.07
  6. Step 6: Final answer
    x = 517,739.93

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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.