Home / 1,053,108.81-1,452,699.59-645,408.21

Finding the Fourth Proportional to 1,053,108.81, 1,452,699.59 and 645,408.21

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Solution

The fourth proportional to 1,053,108.81, 1,452,699.59 and 645,408.21 is: 890,301.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,108.81 : 1,452,699.59 = 645,408.21 : x
  2. Step 2: Convert to fraction form
    1,053,108.81/1,452,699.59 = 645,408.21/x
  3. Step 3: Cross multiply
    1,053,108.81x = 1,452,699.59 × 645,408.21
  4. Step 4: Simplify right side
    1,053,108.81x = 937,584,238,822.59
  5. Step 5: Solve for x
    x = 937,584,238,822.59/1,053,108.81
  6. Step 6: Final answer
    x = 890,301.39

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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.