Home / 808,466.90-1,212,704.55-209,386.10

Finding the Fourth Proportional to 808,466.90, 1,212,704.55 and 209,386.10

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Solution

The fourth proportional to 808,466.90, 1,212,704.55 and 209,386.10 is: 314,080.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,466.90 : 1,212,704.55 = 209,386.10 : x
  2. Step 2: Convert to fraction form
    808,466.90/1,212,704.55 = 209,386.10/x
  3. Step 3: Cross multiply
    808,466.90x = 1,212,704.55 × 209,386.10
  4. Step 4: Simplify right side
    808,466.90x = 253,923,476,176.76
  5. Step 5: Solve for x
    x = 253,923,476,176.76/808,466.90
  6. Step 6: Final answer
    x = 314,080.24

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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.