Home / 874,965.21-1,312,557.30-342,417.48

Finding the Fourth Proportional to 874,965.21, 1,312,557.30 and 342,417.48

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Solution

The fourth proportional to 874,965.21, 1,312,557.30 and 342,417.48 is: 513,669.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,965.21 : 1,312,557.30 = 342,417.48 : x
  2. Step 2: Convert to fraction form
    874,965.21/1,312,557.30 = 342,417.48/x
  3. Step 3: Cross multiply
    874,965.21x = 1,312,557.30 × 342,417.48
  4. Step 4: Simplify right side
    874,965.21x = 449,442,563,021.60
  5. Step 5: Solve for x
    x = 449,442,563,021.60/874,965.21
  6. Step 6: Final answer
    x = 513,669.07

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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.