Home / 724,130.60-1,086,714.30-303,708.20

Finding the Fourth Proportional to 724,130.60, 1,086,714.30 and 303,708.20

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Solution

The fourth proportional to 724,130.60, 1,086,714.30 and 303,708.20 is: 455,779.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,130.60 : 1,086,714.30 = 303,708.20 : x
  2. Step 2: Convert to fraction form
    724,130.60/1,086,714.30 = 303,708.20/x
  3. Step 3: Cross multiply
    724,130.60x = 1,086,714.30 × 303,708.20
  4. Step 4: Simplify right side
    724,130.60x = 330,044,043,967.26
  5. Step 5: Solve for x
    x = 330,044,043,967.26/724,130.60
  6. Step 6: Final answer
    x = 455,779.72

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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.