Home / 926,200.20-1,389,494.70-286,451.40

Finding the Fourth Proportional to 926,200.20, 1,389,494.70 and 286,451.40

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Solution

The fourth proportional to 926,200.20, 1,389,494.70 and 286,451.40 is: 429,737.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,200.20 : 1,389,494.70 = 286,451.40 : x
  2. Step 2: Convert to fraction form
    926,200.20/1,389,494.70 = 286,451.40/x
  3. Step 3: Cross multiply
    926,200.20x = 1,389,494.70 × 286,451.40
  4. Step 4: Simplify right side
    926,200.20x = 398,022,702,107.58
  5. Step 5: Solve for x
    x = 398,022,702,107.58/926,200.20
  6. Step 6: Final answer
    x = 429,737.22

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Double scale
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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.