Home / 823,643.05-1,136,041.47-755,878.86

Finding the Fourth Proportional to 823,643.05, 1,136,041.47 and 755,878.86

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Solution

The fourth proportional to 823,643.05, 1,136,041.47 and 755,878.86 is: 1,042,575.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,643.05 : 1,136,041.47 = 755,878.86 : x
  2. Step 2: Convert to fraction form
    823,643.05/1,136,041.47 = 755,878.86/x
  3. Step 3: Cross multiply
    823,643.05x = 1,136,041.47 × 755,878.86
  4. Step 4: Simplify right side
    823,643.05x = 858,709,731,256.32
  5. Step 5: Solve for x
    x = 858,709,731,256.32/823,643.05
  6. Step 6: Final answer
    x = 1,042,575.10

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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.