Home / 684,461.60-1,026,692.40-211,104.80

Finding the Fourth Proportional to 684,461.60, 1,026,692.40 and 211,104.80

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Solution

The fourth proportional to 684,461.60, 1,026,692.40 and 211,104.80 is: 316,657.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,461.60 : 1,026,692.40 = 211,104.80 : x
  2. Step 2: Convert to fraction form
    684,461.60/1,026,692.40 = 211,104.80/x
  3. Step 3: Cross multiply
    684,461.60x = 1,026,692.40 × 211,104.80
  4. Step 4: Simplify right side
    684,461.60x = 216,739,693,763.52
  5. Step 5: Solve for x
    x = 216,739,693,763.52/684,461.60
  6. Step 6: Final answer
    x = 316,657.20

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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.