Home / 1,385,604.90-2,074,908.15-909,713.70

Finding the Fourth Proportional to 1,385,604.90, 2,074,908.15 and 909,713.70

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Solution

The fourth proportional to 1,385,604.90, 2,074,908.15 and 909,713.70 is: 1,362,273.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,604.90 : 2,074,908.15 = 909,713.70 : x
  2. Step 2: Convert to fraction form
    1,385,604.90/2,074,908.15 = 909,713.70/x
  3. Step 3: Cross multiply
    1,385,604.90x = 2,074,908.15 × 909,713.70
  4. Step 4: Simplify right side
    1,385,604.90x = 1,887,572,370,296.65
  5. Step 5: Solve for x
    x = 1,887,572,370,296.65/1,385,604.90
  6. Step 6: Final answer
    x = 1,362,273.16

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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.