Home / 1,069,321.03-1,475,662.80-639,702.16

Finding the Fourth Proportional to 1,069,321.03, 1,475,662.80 and 639,702.16

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Solution

The fourth proportional to 1,069,321.03, 1,475,662.80 and 639,702.16 is: 882,788.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,321.03 : 1,475,662.80 = 639,702.16 : x
  2. Step 2: Convert to fraction form
    1,069,321.03/1,475,662.80 = 639,702.16/x
  3. Step 3: Cross multiply
    1,069,321.03x = 1,475,662.80 × 639,702.16
  4. Step 4: Simplify right side
    1,069,321.03x = 943,984,680,591.65
  5. Step 5: Solve for x
    x = 943,984,680,591.65/1,069,321.03
  6. Step 6: Final answer
    x = 882,788.85

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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.