Home / 1,370,897.69-1,891,837.28-767,285.69

Finding the Fourth Proportional to 1,370,897.69, 1,891,837.28 and 767,285.69

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Solution

The fourth proportional to 1,370,897.69, 1,891,837.28 and 767,285.69 is: 1,058,853.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,897.69 : 1,891,837.28 = 767,285.69 : x
  2. Step 2: Convert to fraction form
    1,370,897.69/1,891,837.28 = 767,285.69/x
  3. Step 3: Cross multiply
    1,370,897.69x = 1,891,837.28 × 767,285.69
  4. Step 4: Simplify right side
    1,370,897.69x = 1,451,579,665,211.55
  5. Step 5: Solve for x
    x = 1,451,579,665,211.55/1,370,897.69
  6. Step 6: Final answer
    x = 1,058,853.39

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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.