Home / 683,155.80-1,024,733.70-209,779.65

Finding the Fourth Proportional to 683,155.80, 1,024,733.70 and 209,779.65

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Solution

The fourth proportional to 683,155.80, 1,024,733.70 and 209,779.65 is: 314,669.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,155.80 : 1,024,733.70 = 209,779.65 : x
  2. Step 2: Convert to fraction form
    683,155.80/1,024,733.70 = 209,779.65/x
  3. Step 3: Cross multiply
    683,155.80x = 1,024,733.70 × 209,779.65
  4. Step 4: Simplify right side
    683,155.80x = 214,968,276,929.21
  5. Step 5: Solve for x
    x = 214,968,276,929.21/683,155.80
  6. Step 6: Final answer
    x = 314,669.48

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Double scale
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Similar ratio
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1.5x scale

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.