Home / 987,122.81-1,362,104.30-579,075.77

Finding the Fourth Proportional to 987,122.81, 1,362,104.30 and 579,075.77

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Solution

The fourth proportional to 987,122.81, 1,362,104.30 and 579,075.77 is: 799,051.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,122.81 : 1,362,104.30 = 579,075.77 : x
  2. Step 2: Convert to fraction form
    987,122.81/1,362,104.30 = 579,075.77/x
  3. Step 3: Cross multiply
    987,122.81x = 1,362,104.30 × 579,075.77
  4. Step 4: Simplify right side
    987,122.81x = 788,761,586,636.91
  5. Step 5: Solve for x
    x = 788,761,586,636.91/987,122.81
  6. Step 6: Final answer
    x = 799,051.12

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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.