Home / 1,038,676.90-1,557,796.65-439,657.60

Finding the Fourth Proportional to 1,038,676.90, 1,557,796.65 and 439,657.60

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Solution

The fourth proportional to 1,038,676.90, 1,557,796.65 and 439,657.60 is: 659,393.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,676.90 : 1,557,796.65 = 439,657.60 : x
  2. Step 2: Convert to fraction form
    1,038,676.90/1,557,796.65 = 439,657.60/x
  3. Step 3: Cross multiply
    1,038,676.90x = 1,557,796.65 × 439,657.60
  4. Step 4: Simplify right side
    1,038,676.90x = 684,897,136,427.04
  5. Step 5: Solve for x
    x = 684,897,136,427.04/1,038,676.90
  6. Step 6: Final answer
    x = 659,393.83

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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.