Home / 990,463.69-1,363,779.43-773,548.57

Finding the Fourth Proportional to 990,463.69, 1,363,779.43 and 773,548.57

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Solution

The fourth proportional to 990,463.69, 1,363,779.43 and 773,548.57 is: 1,065,106.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,463.69 : 1,363,779.43 = 773,548.57 : x
  2. Step 2: Convert to fraction form
    990,463.69/1,363,779.43 = 773,548.57/x
  3. Step 3: Cross multiply
    990,463.69x = 1,363,779.43 × 773,548.57
  4. Step 4: Simplify right side
    990,463.69x = 1,054,949,627,871.92
  5. Step 5: Solve for x
    x = 1,054,949,627,871.92/990,463.69
  6. Step 6: Final answer
    x = 1,065,106.82

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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.