Home / 818,425.67-1,129,484.21-496,149.35

Finding the Fourth Proportional to 818,425.67, 1,129,484.21 and 496,149.35

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Solution

The fourth proportional to 818,425.67, 1,129,484.21 and 496,149.35 is: 684,720.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,425.67 : 1,129,484.21 = 496,149.35 : x
  2. Step 2: Convert to fraction form
    818,425.67/1,129,484.21 = 496,149.35/x
  3. Step 3: Cross multiply
    818,425.67x = 1,129,484.21 × 496,149.35
  4. Step 4: Simplify right side
    818,425.67x = 560,392,848,498.60
  5. Step 5: Solve for x
    x = 560,392,848,498.60/818,425.67
  6. Step 6: Final answer
    x = 684,720.52

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.