Home / 909,921.10-1,364,881.65-644,200.60

Finding the Fourth Proportional to 909,921.10, 1,364,881.65 and 644,200.60

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Solution

The fourth proportional to 909,921.10, 1,364,881.65 and 644,200.60 is: 966,300.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,921.10 : 1,364,881.65 = 644,200.60 : x
  2. Step 2: Convert to fraction form
    909,921.10/1,364,881.65 = 644,200.60/x
  3. Step 3: Cross multiply
    909,921.10x = 1,364,881.65 × 644,200.60
  4. Step 4: Simplify right side
    909,921.10x = 879,257,577,858.99
  5. Step 5: Solve for x
    x = 879,257,577,858.99/909,921.10
  6. Step 6: Final answer
    x = 966,300.90

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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.