Home / 1,219,075-1,828,466.90-320,586.74

Finding the Fourth Proportional to 1,219,075, 1,828,466.90 and 320,586.74

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Solution

The fourth proportional to 1,219,075, 1,828,466.90 and 320,586.74 is: 480,841.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,075 : 1,828,466.90 = 320,586.74 : x
  2. Step 2: Convert to fraction form
    1,219,075/1,828,466.90 = 320,586.74/x
  3. Step 3: Cross multiply
    1,219,075x = 1,828,466.90 × 320,586.74
  4. Step 4: Simplify right side
    1,219,075x = 586,182,242,668.91
  5. Step 5: Solve for x
    x = 586,182,242,668.91/1,219,075
  6. Step 6: Final answer
    x = 480,841.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.