Home / 926,429.20-1,389,643.80-890,999.80

Finding the Fourth Proportional to 926,429.20, 1,389,643.80 and 890,999.80

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Solution

The fourth proportional to 926,429.20, 1,389,643.80 and 890,999.80 is: 1,336,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,429.20 : 1,389,643.80 = 890,999.80 : x
  2. Step 2: Convert to fraction form
    926,429.20/1,389,643.80 = 890,999.80/x
  3. Step 3: Cross multiply
    926,429.20x = 1,389,643.80 × 890,999.80
  4. Step 4: Simplify right side
    926,429.20x = 1,238,172,347,871.24
  5. Step 5: Solve for x
    x = 1,238,172,347,871.24/926,429.20
  6. Step 6: Final answer
    x = 1,336,499.70

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Similar ratio
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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.