Home / 874,334.80-1,312,085.40-400,776.40

Finding the Fourth Proportional to 874,334.80, 1,312,085.40 and 400,776.40

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Solution

The fourth proportional to 874,334.80, 1,312,085.40 and 400,776.40 is: 601,431.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,334.80 : 1,312,085.40 = 400,776.40 : x
  2. Step 2: Convert to fraction form
    874,334.80/1,312,085.40 = 400,776.40/x
  3. Step 3: Cross multiply
    874,334.80x = 1,312,085.40 × 400,776.40
  4. Step 4: Simplify right side
    874,334.80x = 525,852,863,104.56
  5. Step 5: Solve for x
    x = 525,852,863,104.56/874,334.80
  6. Step 6: Final answer
    x = 601,431.93

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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.