Home / 909,933.78-1,255,712.98-502,035.60

Finding the Fourth Proportional to 909,933.78, 1,255,712.98 and 502,035.60

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Solution

The fourth proportional to 909,933.78, 1,255,712.98 and 502,035.60 is: 692,811.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,933.78 : 1,255,712.98 = 502,035.60 : x
  2. Step 2: Convert to fraction form
    909,933.78/1,255,712.98 = 502,035.60/x
  3. Step 3: Cross multiply
    909,933.78x = 1,255,712.98 × 502,035.60
  4. Step 4: Simplify right side
    909,933.78x = 630,412,619,342.09
  5. Step 5: Solve for x
    x = 630,412,619,342.09/909,933.78
  6. Step 6: Final answer
    x = 692,811.54

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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.