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Finding the Fourth Proportional to 437,802.80, 654,702.96 and 318,261.32

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Solution

The fourth proportional to 437,802.80, 654,702.96 and 318,261.32 is: 475,937.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,802.80 : 654,702.96 = 318,261.32 : x
  2. Step 2: Convert to fraction form
    437,802.80/654,702.96 = 318,261.32/x
  3. Step 3: Cross multiply
    437,802.80x = 654,702.96 × 318,261.32
  4. Step 4: Simplify right side
    437,802.80x = 208,366,628,257.51
  5. Step 5: Solve for x
    x = 208,366,628,257.51/437,802.80
  6. Step 6: Final answer
    x = 475,937.18

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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.