Home / 1,386,894.48-2,080,413-389,700.24

Finding the Fourth Proportional to 1,386,894.48, 2,080,413 and 389,700.24

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Solution

The fourth proportional to 1,386,894.48, 2,080,413 and 389,700.24 is: 584,570.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,894.48 : 2,080,413 = 389,700.24 : x
  2. Step 2: Convert to fraction form
    1,386,894.48/2,080,413 = 389,700.24/x
  3. Step 3: Cross multiply
    1,386,894.48x = 2,080,413 × 389,700.24
  4. Step 4: Simplify right side
    1,386,894.48x = 810,737,445,399.12
  5. Step 5: Solve for x
    x = 810,737,445,399.12/1,386,894.48
  6. Step 6: Final answer
    x = 584,570.39

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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.