Home / 907,704.60-1,364,509.35-643,296.30

Finding the Fourth Proportional to 907,704.60, 1,364,509.35 and 643,296.30

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Solution

The fourth proportional to 907,704.60, 1,364,509.35 and 643,296.30 is: 967,036.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,704.60 : 1,364,509.35 = 643,296.30 : x
  2. Step 2: Convert to fraction form
    907,704.60/1,364,509.35 = 643,296.30/x
  3. Step 3: Cross multiply
    907,704.60x = 1,364,509.35 × 643,296.30
  4. Step 4: Simplify right side
    907,704.60x = 877,783,816,170.41
  5. Step 5: Solve for x
    x = 877,783,816,170.41/907,704.60
  6. Step 6: Final answer
    x = 967,036.87

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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.