Home / 909,647.39-1,255,303.30-501,766.42

Finding the Fourth Proportional to 909,647.39, 1,255,303.30 and 501,766.42

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Solution

The fourth proportional to 909,647.39, 1,255,303.30 and 501,766.42 is: 692,432.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,647.39 : 1,255,303.30 = 501,766.42 : x
  2. Step 2: Convert to fraction form
    909,647.39/1,255,303.30 = 501,766.42/x
  3. Step 3: Cross multiply
    909,647.39x = 1,255,303.30 × 501,766.42
  4. Step 4: Simplify right side
    909,647.39x = 629,869,042,855.19
  5. Step 5: Solve for x
    x = 629,869,042,855.19/909,647.39
  6. Step 6: Final answer
    x = 692,432.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.