Home / 830,870.11-1,146,601.34-448,896.79

Finding the Fourth Proportional to 830,870.11, 1,146,601.34 and 448,896.79

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Solution

The fourth proportional to 830,870.11, 1,146,601.34 and 448,896.79 is: 619,477.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,870.11 : 1,146,601.34 = 448,896.79 : x
  2. Step 2: Convert to fraction form
    830,870.11/1,146,601.34 = 448,896.79/x
  3. Step 3: Cross multiply
    830,870.11x = 1,146,601.34 × 448,896.79
  4. Step 4: Simplify right side
    830,870.11x = 514,705,660,935.70
  5. Step 5: Solve for x
    x = 514,705,660,935.70/830,870.11
  6. Step 6: Final answer
    x = 619,477.89

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.