Home / 1,448,557.20-2,172,835.80-909,680.40

Finding the Fourth Proportional to 1,448,557.20, 2,172,835.80 and 909,680.40

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Solution

The fourth proportional to 1,448,557.20, 2,172,835.80 and 909,680.40 is: 1,364,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448,557.20 : 2,172,835.80 = 909,680.40 : x
  2. Step 2: Convert to fraction form
    1,448,557.20/2,172,835.80 = 909,680.40/x
  3. Step 3: Cross multiply
    1,448,557.20x = 2,172,835.80 × 909,680.40
  4. Step 4: Simplify right side
    1,448,557.20x = 1,976,586,139,678.32
  5. Step 5: Solve for x
    x = 1,976,586,139,678.32/1,448,557.20
  6. Step 6: Final answer
    x = 1,364,520.60

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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.