Home / 909,887.28-1,255,635.78-501,992.40

Finding the Fourth Proportional to 909,887.28, 1,255,635.78 and 501,992.40

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Solution

The fourth proportional to 909,887.28, 1,255,635.78 and 501,992.40 is: 692,744.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,887.28 : 1,255,635.78 = 501,992.40 : x
  2. Step 2: Convert to fraction form
    909,887.28/1,255,635.78 = 501,992.40/x
  3. Step 3: Cross multiply
    909,887.28x = 1,255,635.78 × 501,992.40
  4. Step 4: Simplify right side
    909,887.28x = 630,319,618,728.07
  5. Step 5: Solve for x
    x = 630,319,618,728.07/909,887.28
  6. Step 6: Final answer
    x = 692,744.73

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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.