Home / 909,051.76-1,254,501.08-501,168.21

Finding the Fourth Proportional to 909,051.76, 1,254,501.08 and 501,168.21

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Solution

The fourth proportional to 909,051.76, 1,254,501.08 and 501,168.21 is: 691,617.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,051.76 : 1,254,501.08 = 501,168.21 : x
  2. Step 2: Convert to fraction form
    909,051.76/1,254,501.08 = 501,168.21/x
  3. Step 3: Cross multiply
    909,051.76x = 1,254,501.08 × 501,168.21
  4. Step 4: Simplify right side
    909,051.76x = 628,716,055,375.83
  5. Step 5: Solve for x
    x = 628,716,055,375.83/909,051.76
  6. Step 6: Final answer
    x = 691,617.45

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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.