Home / 742,656.74-1,118,015.60-665,499.38

Finding the Fourth Proportional to 742,656.74, 1,118,015.60 and 665,499.38

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Solution

The fourth proportional to 742,656.74, 1,118,015.60 and 665,499.38 is: 1,001,860.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,656.74 : 1,118,015.60 = 665,499.38 : x
  2. Step 2: Convert to fraction form
    742,656.74/1,118,015.60 = 665,499.38/x
  3. Step 3: Cross multiply
    742,656.74x = 1,118,015.60 × 665,499.38
  4. Step 4: Simplify right side
    742,656.74x = 744,038,679,712.75
  5. Step 5: Solve for x
    x = 744,038,679,712.75/742,656.74
  6. Step 6: Final answer
    x = 1,001,860.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.