Home / 909,074.28-1,254,530.63-501,190.58

Finding the Fourth Proportional to 909,074.28, 1,254,530.63 and 501,190.58

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Solution

The fourth proportional to 909,074.28, 1,254,530.63 and 501,190.58 is: 691,647.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,074.28 : 1,254,530.63 = 501,190.58 : x
  2. Step 2: Convert to fraction form
    909,074.28/1,254,530.63 = 501,190.58/x
  3. Step 3: Cross multiply
    909,074.28x = 1,254,530.63 × 501,190.58
  4. Step 4: Simplify right side
    909,074.28x = 628,758,934,707.84
  5. Step 5: Solve for x
    x = 628,758,934,707.84/909,074.28
  6. Step 6: Final answer
    x = 691,647.48

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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.