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Finding the Fourth Proportional to 536,145.60, 740,047.02 and 345,159

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Solution

The fourth proportional to 536,145.60, 740,047.02 and 345,159 is: 476,426.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,145.60 : 740,047.02 = 345,159 : x
  2. Step 2: Convert to fraction form
    536,145.60/740,047.02 = 345,159/x
  3. Step 3: Cross multiply
    536,145.60x = 740,047.02 × 345,159
  4. Step 4: Simplify right side
    536,145.60x = 255,433,889,376.18
  5. Step 5: Solve for x
    x = 255,433,889,376.18/536,145.60
  6. Step 6: Final answer
    x = 476,426.35

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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.