Home / 807,809.60-1,211,714.40-275,931.20

Finding the Fourth Proportional to 807,809.60, 1,211,714.40 and 275,931.20

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Solution

The fourth proportional to 807,809.60, 1,211,714.40 and 275,931.20 is: 413,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,809.60 : 1,211,714.40 = 275,931.20 : x
  2. Step 2: Convert to fraction form
    807,809.60/1,211,714.40 = 275,931.20/x
  3. Step 3: Cross multiply
    807,809.60x = 1,211,714.40 × 275,931.20
  4. Step 4: Simplify right side
    807,809.60x = 334,349,808,449.28
  5. Step 5: Solve for x
    x = 334,349,808,449.28/807,809.60
  6. Step 6: Final answer
    x = 413,896.80

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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.