Home / 1,531,830.81-2,113,843.73-843,368.61

Finding the Fourth Proportional to 1,531,830.81, 2,113,843.73 and 843,368.61

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Solution

The fourth proportional to 1,531,830.81, 2,113,843.73 and 843,368.61 is: 1,163,803.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,830.81 : 2,113,843.73 = 843,368.61 : x
  2. Step 2: Convert to fraction form
    1,531,830.81/2,113,843.73 = 843,368.61/x
  3. Step 3: Cross multiply
    1,531,830.81x = 2,113,843.73 × 843,368.61
  4. Step 4: Simplify right side
    1,531,830.81x = 1,782,749,444,110.47
  5. Step 5: Solve for x
    x = 1,782,749,444,110.47/1,531,830.81
  6. Step 6: Final answer
    x = 1,163,803.10

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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.