Home / 1,385,404.65-2,078,106.98-936,340.65

Finding the Fourth Proportional to 1,385,404.65, 2,078,106.98 and 936,340.65

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Solution

The fourth proportional to 1,385,404.65, 2,078,106.98 and 936,340.65 is: 1,404,510.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,404.65 : 2,078,106.98 = 936,340.65 : x
  2. Step 2: Convert to fraction form
    1,385,404.65/2,078,106.98 = 936,340.65/x
  3. Step 3: Cross multiply
    1,385,404.65x = 2,078,106.98 × 936,340.65
  4. Step 4: Simplify right side
    1,385,404.65x = 1,945,816,035,741.03
  5. Step 5: Solve for x
    x = 1,945,816,035,741.03/1,385,404.65
  6. Step 6: Final answer
    x = 1,404,510.98

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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.