Home / 864,037.80-1,296,056.70-490,789.80

Finding the Fourth Proportional to 864,037.80, 1,296,056.70 and 490,789.80

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Solution

The fourth proportional to 864,037.80, 1,296,056.70 and 490,789.80 is: 736,184.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,037.80 : 1,296,056.70 = 490,789.80 : x
  2. Step 2: Convert to fraction form
    864,037.80/1,296,056.70 = 490,789.80/x
  3. Step 3: Cross multiply
    864,037.80x = 1,296,056.70 × 490,789.80
  4. Step 4: Simplify right side
    864,037.80x = 636,091,408,581.66
  5. Step 5: Solve for x
    x = 636,091,408,581.66/864,037.80
  6. Step 6: Final answer
    x = 736,184.70

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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.