Home / 684,788.64-1,026,626.22-285,726.66

Finding the Fourth Proportional to 684,788.64, 1,026,626.22 and 285,726.66

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Solution

The fourth proportional to 684,788.64, 1,026,626.22 and 285,726.66 is: 428,357.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,788.64 : 1,026,626.22 = 285,726.66 : x
  2. Step 2: Convert to fraction form
    684,788.64/1,026,626.22 = 285,726.66/x
  3. Step 3: Cross multiply
    684,788.64x = 1,026,626.22 × 285,726.66
  4. Step 4: Simplify right side
    684,788.64x = 293,334,480,909.03
  5. Step 5: Solve for x
    x = 293,334,480,909.03/684,788.64
  6. Step 6: Final answer
    x = 428,357.69

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1.5x scale

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.