Home / 874,457.79-1,311,562.10-275,403.36

Finding the Fourth Proportional to 874,457.79, 1,311,562.10 and 275,403.36

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Solution

The fourth proportional to 874,457.79, 1,311,562.10 and 275,403.36 is: 413,065.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,457.79 : 1,311,562.10 = 275,403.36 : x
  2. Step 2: Convert to fraction form
    874,457.79/1,311,562.10 = 275,403.36/x
  3. Step 3: Cross multiply
    874,457.79x = 1,311,562.10 × 275,403.36
  4. Step 4: Simplify right side
    874,457.79x = 361,208,607,811.64
  5. Step 5: Solve for x
    x = 361,208,607,811.64/874,457.79
  6. Step 6: Final answer
    x = 413,065.80

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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.