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Finding the Fourth Proportional to 532,018.59, 734,203.36 and 290,314.43

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Solution

The fourth proportional to 532,018.59, 734,203.36 and 290,314.43 is: 400,643.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,018.59 : 734,203.36 = 290,314.43 : x
  2. Step 2: Convert to fraction form
    532,018.59/734,203.36 = 290,314.43/x
  3. Step 3: Cross multiply
    532,018.59x = 734,203.36 × 290,314.43
  4. Step 4: Simplify right side
    532,018.59x = 213,149,824,839.90
  5. Step 5: Solve for x
    x = 213,149,824,839.90/532,018.59
  6. Step 6: Final answer
    x = 400,643.57

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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.