Home / 1,428,473.55-1,970,985.55-824,511.63

Finding the Fourth Proportional to 1,428,473.55, 1,970,985.55 and 824,511.63

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Solution

The fourth proportional to 1,428,473.55, 1,970,985.55 and 824,511.63 is: 1,137,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,473.55 : 1,970,985.55 = 824,511.63 : x
  2. Step 2: Convert to fraction form
    1,428,473.55/1,970,985.55 = 824,511.63/x
  3. Step 3: Cross multiply
    1,428,473.55x = 1,970,985.55 × 824,511.63
  4. Step 4: Simplify right side
    1,428,473.55x = 1,625,100,508,536.95
  5. Step 5: Solve for x
    x = 1,625,100,508,536.95/1,428,473.55
  6. Step 6: Final answer
    x = 1,137,648.30

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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.