Home / 1,218,311.23-1,680,741.60-734,607.65

Finding the Fourth Proportional to 1,218,311.23, 1,680,741.60 and 734,607.65

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Solution

The fourth proportional to 1,218,311.23, 1,680,741.60 and 734,607.65 is: 1,013,440.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,311.23 : 1,680,741.60 = 734,607.65 : x
  2. Step 2: Convert to fraction form
    1,218,311.23/1,680,741.60 = 734,607.65/x
  3. Step 3: Cross multiply
    1,218,311.23x = 1,680,741.60 × 734,607.65
  4. Step 4: Simplify right side
    1,218,311.23x = 1,234,685,637,033.24
  5. Step 5: Solve for x
    x = 1,234,685,637,033.24/1,218,311.23
  6. Step 6: Final answer
    x = 1,013,440.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.