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Finding the Fourth Proportional to 662,690.41, 915,052.08 and 540,202.01

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Solution

The fourth proportional to 662,690.41, 915,052.08 and 540,202.01 is: 745,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,690.41 : 915,052.08 = 540,202.01 : x
  2. Step 2: Convert to fraction form
    662,690.41/915,052.08 = 540,202.01/x
  3. Step 3: Cross multiply
    662,690.41x = 915,052.08 × 540,202.01
  4. Step 4: Simplify right side
    662,690.41x = 494,312,970,583.05
  5. Step 5: Solve for x
    x = 494,312,970,583.05/662,690.41
  6. Step 6: Final answer
    x = 745,918.40

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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.