Home / 830,701.40-1,245,591.30-331,501.40

Finding the Fourth Proportional to 830,701.40, 1,245,591.30 and 331,501.40

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Solution

The fourth proportional to 830,701.40, 1,245,591.30 and 331,501.40 is: 497,068.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,701.40 : 1,245,591.30 = 331,501.40 : x
  2. Step 2: Convert to fraction form
    830,701.40/1,245,591.30 = 331,501.40/x
  3. Step 3: Cross multiply
    830,701.40x = 1,245,591.30 × 331,501.40
  4. Step 4: Simplify right side
    830,701.40x = 412,915,259,777.82
  5. Step 5: Solve for x
    x = 412,915,259,777.82/830,701.40
  6. Step 6: Final answer
    x = 497,068.21

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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.