Home / 830,673.80-1,246,010.70-547,238.60

Finding the Fourth Proportional to 830,673.80, 1,246,010.70 and 547,238.60

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Solution

The fourth proportional to 830,673.80, 1,246,010.70 and 547,238.60 is: 820,857.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,673.80 : 1,246,010.70 = 547,238.60 : x
  2. Step 2: Convert to fraction form
    830,673.80/1,246,010.70 = 547,238.60/x
  3. Step 3: Cross multiply
    830,673.80x = 1,246,010.70 × 547,238.60
  4. Step 4: Simplify right side
    830,673.80x = 681,865,151,053.02
  5. Step 5: Solve for x
    x = 681,865,151,053.02/830,673.80
  6. Step 6: Final answer
    x = 820,857.90

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Double scale
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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.