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Finding the Fourth Proportional to 668,739.30, 922,860.18 and 382,265.52

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Solution

The fourth proportional to 668,739.30, 922,860.18 and 382,265.52 is: 527,526.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,739.30 : 922,860.18 = 382,265.52 : x
  2. Step 2: Convert to fraction form
    668,739.30/922,860.18 = 382,265.52/x
  3. Step 3: Cross multiply
    668,739.30x = 922,860.18 × 382,265.52
  4. Step 4: Simplify right side
    668,739.30x = 352,777,626,594.99
  5. Step 5: Solve for x
    x = 352,777,626,594.99/668,739.30
  6. Step 6: Final answer
    x = 527,526.39

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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.