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Finding the Fourth Proportional to 646,740.70, 970,548.45 and 362,430.70

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Solution

The fourth proportional to 646,740.70, 970,548.45 and 362,430.70 is: 543,891.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,740.70 : 970,548.45 = 362,430.70 : x
  2. Step 2: Convert to fraction form
    646,740.70/970,548.45 = 362,430.70/x
  3. Step 3: Cross multiply
    646,740.70x = 970,548.45 × 362,430.70
  4. Step 4: Simplify right side
    646,740.70x = 351,756,554,117.42
  5. Step 5: Solve for x
    x = 351,756,554,117.42/646,740.70
  6. Step 6: Final answer
    x = 543,891.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.