Home / 684,081.40-1,026,122.10-210,911.80

Finding the Fourth Proportional to 684,081.40, 1,026,122.10 and 210,911.80

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Solution

The fourth proportional to 684,081.40, 1,026,122.10 and 210,911.80 is: 316,367.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,081.40 : 1,026,122.10 = 210,911.80 : x
  2. Step 2: Convert to fraction form
    684,081.40/1,026,122.10 = 210,911.80/x
  3. Step 3: Cross multiply
    684,081.40x = 1,026,122.10 × 210,911.80
  4. Step 4: Simplify right side
    684,081.40x = 216,421,259,130.78
  5. Step 5: Solve for x
    x = 216,421,259,130.78/684,081.40
  6. Step 6: Final answer
    x = 316,367.70

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Double scale
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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.