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Finding the Fourth Proportional to 909,398.96, 1,254,954 and 501,538.50

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Solution

The fourth proportional to 909,398.96, 1,254,954 and 501,538.50 is: 692,113.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,398.96 : 1,254,954 = 501,538.50 : x
  2. Step 2: Convert to fraction form
    909,398.96/1,254,954 = 501,538.50/x
  3. Step 3: Cross multiply
    909,398.96x = 1,254,954 × 501,538.50
  4. Step 4: Simplify right side
    909,398.96x = 629,407,746,729
  5. Step 5: Solve for x
    x = 629,407,746,729/909,398.96
  6. Step 6: Final answer
    x = 692,113.99

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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.