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Finding the Fourth Proportional to 966,139, 1,333,313.46 and 536,419.18

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Solution

The fourth proportional to 966,139, 1,333,313.46 and 536,419.18 is: 740,281.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,139 : 1,333,313.46 = 536,419.18 : x
  2. Step 2: Convert to fraction form
    966,139/1,333,313.46 = 536,419.18/x
  3. Step 3: Cross multiply
    966,139x = 1,333,313.46 × 536,419.18
  4. Step 4: Simplify right side
    966,139x = 715,214,912,896.16
  5. Step 5: Solve for x
    x = 715,214,912,896.16/966,139
  6. Step 6: Final answer
    x = 740,281.59

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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.