Home / 692,695.20-1,039,075.20-219,417.60

Finding the Fourth Proportional to 692,695.20, 1,039,075.20 and 219,417.60

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Solution

The fourth proportional to 692,695.20, 1,039,075.20 and 219,417.60 is: 329,136.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,695.20 : 1,039,075.20 = 219,417.60 : x
  2. Step 2: Convert to fraction form
    692,695.20/1,039,075.20 = 219,417.60/x
  3. Step 3: Cross multiply
    692,695.20x = 1,039,075.20 × 219,417.60
  4. Step 4: Simplify right side
    692,695.20x = 227,991,386,603.52
  5. Step 5: Solve for x
    x = 227,991,386,603.52/692,695.20
  6. Step 6: Final answer
    x = 329,136.66

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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.