Home / 909,903.60-1,364,855.40-644,183.10

Finding the Fourth Proportional to 909,903.60, 1,364,855.40 and 644,183.10

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Solution

The fourth proportional to 909,903.60, 1,364,855.40 and 644,183.10 is: 966,274.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,903.60 : 1,364,855.40 = 644,183.10 : x
  2. Step 2: Convert to fraction form
    909,903.60/1,364,855.40 = 644,183.10/x
  3. Step 3: Cross multiply
    909,903.60x = 1,364,855.40 × 644,183.10
  4. Step 4: Simplify right side
    909,903.60x = 879,216,782,623.74
  5. Step 5: Solve for x
    x = 879,216,782,623.74/909,903.60
  6. Step 6: Final answer
    x = 966,274.65

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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.