Home / 687,830.60-1,031,745.90-604,886.60

Finding the Fourth Proportional to 687,830.60, 1,031,745.90 and 604,886.60

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Solution

The fourth proportional to 687,830.60, 1,031,745.90 and 604,886.60 is: 907,329.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,830.60 : 1,031,745.90 = 604,886.60 : x
  2. Step 2: Convert to fraction form
    687,830.60/1,031,745.90 = 604,886.60/x
  3. Step 3: Cross multiply
    687,830.60x = 1,031,745.90 × 604,886.60
  4. Step 4: Simplify right side
    687,830.60x = 624,089,269,514.94
  5. Step 5: Solve for x
    x = 624,089,269,514.94/687,830.60
  6. Step 6: Final answer
    x = 907,329.90

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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.