Home / 890,642.67-1,337,814.69-720,057.20

Finding the Fourth Proportional to 890,642.67, 1,337,814.69 and 720,057.20

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Solution

The fourth proportional to 890,642.67, 1,337,814.69 and 720,057.20 is: 1,081,582.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,642.67 : 1,337,814.69 = 720,057.20 : x
  2. Step 2: Convert to fraction form
    890,642.67/1,337,814.69 = 720,057.20/x
  3. Step 3: Cross multiply
    890,642.67x = 1,337,814.69 × 720,057.20
  4. Step 4: Simplify right side
    890,642.67x = 963,303,090,410.98
  5. Step 5: Solve for x
    x = 963,303,090,410.98/890,642.67
  6. Step 6: Final answer
    x = 1,081,582.02

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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.