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Finding the Fourth Proportional to 666,802.08, 920,185.08 and 360,879.06

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Solution

The fourth proportional to 666,802.08, 920,185.08 and 360,879.06 is: 498,012.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,802.08 : 920,185.08 = 360,879.06 : x
  2. Step 2: Convert to fraction form
    666,802.08/920,185.08 = 360,879.06/x
  3. Step 3: Cross multiply
    666,802.08x = 920,185.08 × 360,879.06
  4. Step 4: Simplify right side
    666,802.08x = 332,075,526,696.43
  5. Step 5: Solve for x
    x = 332,075,526,696.43/666,802.08
  6. Step 6: Final answer
    x = 498,012.13

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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.