Home / 726,015.30-1,089,022.95-698,459.10

Finding the Fourth Proportional to 726,015.30, 1,089,022.95 and 698,459.10

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Solution

The fourth proportional to 726,015.30, 1,089,022.95 and 698,459.10 is: 1,047,688.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,015.30 : 1,089,022.95 = 698,459.10 : x
  2. Step 2: Convert to fraction form
    726,015.30/1,089,022.95 = 698,459.10/x
  3. Step 3: Cross multiply
    726,015.30x = 1,089,022.95 × 698,459.10
  4. Step 4: Simplify right side
    726,015.30x = 760,637,989,536.35
  5. Step 5: Solve for x
    x = 760,637,989,536.35/726,015.30
  6. Step 6: Final answer
    x = 1,047,688.65

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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.