Home / 909,920.10-1,364,880.15-644,199.60

Finding the Fourth Proportional to 909,920.10, 1,364,880.15 and 644,199.60

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Solution

The fourth proportional to 909,920.10, 1,364,880.15 and 644,199.60 is: 966,299.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,920.10 : 1,364,880.15 = 644,199.60 : x
  2. Step 2: Convert to fraction form
    909,920.10/1,364,880.15 = 644,199.60/x
  3. Step 3: Cross multiply
    909,920.10x = 1,364,880.15 × 644,199.60
  4. Step 4: Simplify right side
    909,920.10x = 879,255,246,677.94
  5. Step 5: Solve for x
    x = 879,255,246,677.94/909,920.10
  6. Step 6: Final answer
    x = 966,299.40

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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.