Home / 1,580,886.68-2,179,455.52-999,820.20

Finding the Fourth Proportional to 1,580,886.68, 2,179,455.52 and 999,820.20

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Solution

The fourth proportional to 1,580,886.68, 2,179,455.52 and 999,820.20 is: 1,378,380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580,886.68 : 2,179,455.52 = 999,820.20 : x
  2. Step 2: Convert to fraction form
    1,580,886.68/2,179,455.52 = 999,820.20/x
  3. Step 3: Cross multiply
    1,580,886.68x = 2,179,455.52 × 999,820.20
  4. Step 4: Simplify right side
    1,580,886.68x = 2,179,063,653,897.50
  5. Step 5: Solve for x
    x = 2,179,063,653,897.50/1,580,886.68
  6. Step 6: Final answer
    x = 1,378,380.68

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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.