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Finding the Fourth Proportional to 424,463.88, 585,359.70 and 279,012.72

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Solution

The fourth proportional to 424,463.88, 585,359.70 and 279,012.72 is: 384,774.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,463.88 : 585,359.70 = 279,012.72 : x
  2. Step 2: Convert to fraction form
    424,463.88/585,359.70 = 279,012.72/x
  3. Step 3: Cross multiply
    424,463.88x = 585,359.70 × 279,012.72
  4. Step 4: Simplify right side
    424,463.88x = 163,322,802,075.38
  5. Step 5: Solve for x
    x = 163,322,802,075.38/424,463.88
  6. Step 6: Final answer
    x = 384,774.32

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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.