Home / 1,053,113.21-1,453,303.31-645,215.84

Finding the Fourth Proportional to 1,053,113.21, 1,453,303.31 and 645,215.84

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Solution

The fourth proportional to 1,053,113.21, 1,453,303.31 and 645,215.84 is: 890,402.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,113.21 : 1,453,303.31 = 645,215.84 : x
  2. Step 2: Convert to fraction form
    1,053,113.21/1,453,303.31 = 645,215.84/x
  3. Step 3: Cross multiply
    1,053,113.21x = 1,453,303.31 × 645,215.84
  4. Step 4: Simplify right side
    1,053,113.21x = 937,694,305,443.84
  5. Step 5: Solve for x
    x = 937,694,305,443.84/1,053,113.21
  6. Step 6: Final answer
    x = 890,402.19

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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.