Home / 899,769.03-1,241,683.73-491,875.76

Finding the Fourth Proportional to 899,769.03, 1,241,683.73 and 491,875.76

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Solution

The fourth proportional to 899,769.03, 1,241,683.73 and 491,875.76 is: 678,789.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,769.03 : 1,241,683.73 = 491,875.76 : x
  2. Step 2: Convert to fraction form
    899,769.03/1,241,683.73 = 491,875.76/x
  3. Step 3: Cross multiply
    899,769.03x = 1,241,683.73 × 491,875.76
  4. Step 4: Simplify right side
    899,769.03x = 610,754,119,705.59
  5. Step 5: Solve for x
    x = 610,754,119,705.59/899,769.03
  6. Step 6: Final answer
    x = 678,789.89

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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.