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Finding the Fourth Proportional to 666,352.59, 919,566.58 and 360,428.96

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Solution

The fourth proportional to 666,352.59, 919,566.58 and 360,428.96 is: 497,391.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,352.59 : 919,566.58 = 360,428.96 : x
  2. Step 2: Convert to fraction form
    666,352.59/919,566.58 = 360,428.96/x
  3. Step 3: Cross multiply
    666,352.59x = 919,566.58 × 360,428.96
  4. Step 4: Simplify right side
    666,352.59x = 331,438,424,705.43
  5. Step 5: Solve for x
    x = 331,438,424,705.43/666,352.59
  6. Step 6: Final answer
    x = 497,391.96

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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.