Home / 1,087,649.76-1,631,708.10-456,199.68

Finding the Fourth Proportional to 1,087,649.76, 1,631,708.10 and 456,199.68

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Solution

The fourth proportional to 1,087,649.76, 1,631,708.10 and 456,199.68 is: 684,397.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,649.76 : 1,631,708.10 = 456,199.68 : x
  2. Step 2: Convert to fraction form
    1,087,649.76/1,631,708.10 = 456,199.68/x
  3. Step 3: Cross multiply
    1,087,649.76x = 1,631,708.10 × 456,199.68
  4. Step 4: Simplify right side
    1,087,649.76x = 744,384,713,073.41
  5. Step 5: Solve for x
    x = 744,384,713,073.41/1,087,649.76
  6. Step 6: Final answer
    x = 684,397.44

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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.