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Finding the Fourth Proportional to 666,695.53, 920,032.77 and 360,765.19

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Solution

The fourth proportional to 666,695.53, 920,032.77 and 360,765.19 is: 497,852.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,695.53 : 920,032.77 = 360,765.19 : x
  2. Step 2: Convert to fraction form
    666,695.53/920,032.77 = 360,765.19/x
  3. Step 3: Cross multiply
    666,695.53x = 920,032.77 × 360,765.19
  4. Step 4: Simplify right side
    666,695.53x = 331,915,797,075.28
  5. Step 5: Solve for x
    x = 331,915,797,075.28/666,695.53
  6. Step 6: Final answer
    x = 497,852.14

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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.