Home / 916,516.90-1,375,103.40-384,201.10

Finding the Fourth Proportional to 916,516.90, 1,375,103.40 and 384,201.10

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Solution

The fourth proportional to 916,516.90, 1,375,103.40 and 384,201.10 is: 576,439.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,516.90 : 1,375,103.40 = 384,201.10 : x
  2. Step 2: Convert to fraction form
    916,516.90/1,375,103.40 = 384,201.10/x
  3. Step 3: Cross multiply
    916,516.90x = 1,375,103.40 × 384,201.10
  4. Step 4: Simplify right side
    916,516.90x = 528,316,238,893.74
  5. Step 5: Solve for x
    x = 528,316,238,893.74/916,516.90
  6. Step 6: Final answer
    x = 576,439.17

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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.