Home / 1,557,419.21-2,149,238.94-859,700.45

Finding the Fourth Proportional to 1,557,419.21, 2,149,238.94 and 859,700.45

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Solution

The fourth proportional to 1,557,419.21, 2,149,238.94 and 859,700.45 is: 1,186,386.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,419.21 : 2,149,238.94 = 859,700.45 : x
  2. Step 2: Convert to fraction form
    1,557,419.21/2,149,238.94 = 859,700.45/x
  3. Step 3: Cross multiply
    1,557,419.21x = 2,149,238.94 × 859,700.45
  4. Step 4: Simplify right side
    1,557,419.21x = 1,847,701,683,875.52
  5. Step 5: Solve for x
    x = 1,847,701,683,875.52/1,557,419.21
  6. Step 6: Final answer
    x = 1,186,386.86

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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.