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Finding the Fourth Proportional to 532,090.64, 734,300.56 and 290,388.76

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Solution

The fourth proportional to 532,090.64, 734,300.56 and 290,388.76 is: 400,744.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,090.64 : 734,300.56 = 290,388.76 : x
  2. Step 2: Convert to fraction form
    532,090.64/734,300.56 = 290,388.76/x
  3. Step 3: Cross multiply
    532,090.64x = 734,300.56 × 290,388.76
  4. Step 4: Simplify right side
    532,090.64x = 213,232,629,085.71
  5. Step 5: Solve for x
    x = 213,232,629,085.71/532,090.64
  6. Step 6: Final answer
    x = 400,744.94

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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.