Home / 1,531,445.04-2,297,679.08-678,400.80

Finding the Fourth Proportional to 1,531,445.04, 2,297,679.08 and 678,400.80

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Solution

The fourth proportional to 1,531,445.04, 2,297,679.08 and 678,400.80 is: 1,017,827.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,445.04 : 2,297,679.08 = 678,400.80 : x
  2. Step 2: Convert to fraction form
    1,531,445.04/2,297,679.08 = 678,400.80/x
  3. Step 3: Cross multiply
    1,531,445.04x = 2,297,679.08 × 678,400.80
  4. Step 4: Simplify right side
    1,531,445.04x = 1,558,747,326,015.26
  5. Step 5: Solve for x
    x = 1,558,747,326,015.26/1,531,445.04
  6. Step 6: Final answer
    x = 1,017,827.79

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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.