Home / 1,642,640.64-2,266,820.20-917,498.67

Finding the Fourth Proportional to 1,642,640.64, 2,266,820.20 and 917,498.67

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Solution

The fourth proportional to 1,642,640.64, 2,266,820.20 and 917,498.67 is: 1,266,134.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,640.64 : 2,266,820.20 = 917,498.67 : x
  2. Step 2: Convert to fraction form
    1,642,640.64/2,266,820.20 = 917,498.67/x
  3. Step 3: Cross multiply
    1,642,640.64x = 2,266,820.20 × 917,498.67
  4. Step 4: Simplify right side
    1,642,640.64x = 2,079,804,518,629.13
  5. Step 5: Solve for x
    x = 2,079,804,518,629.13/1,642,640.64
  6. Step 6: Final answer
    x = 1,266,134.82

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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.