Home / 1,021,195.08-1,531,339.92-389,667.24

Finding the Fourth Proportional to 1,021,195.08, 1,531,339.92 and 389,667.24

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Solution

The fourth proportional to 1,021,195.08, 1,531,339.92 and 389,667.24 is: 584,328.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,195.08 : 1,531,339.92 = 389,667.24 : x
  2. Step 2: Convert to fraction form
    1,021,195.08/1,531,339.92 = 389,667.24/x
  3. Step 3: Cross multiply
    1,021,195.08x = 1,531,339.92 × 389,667.24
  4. Step 4: Simplify right side
    1,021,195.08x = 596,713,000,128.22
  5. Step 5: Solve for x
    x = 596,713,000,128.22/1,021,195.08
  6. Step 6: Final answer
    x = 584,328.12

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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.