Home / 867,545.51-1,301,379.08-268,427.79

Finding the Fourth Proportional to 867,545.51, 1,301,379.08 and 268,427.79

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Solution

The fourth proportional to 867,545.51, 1,301,379.08 and 268,427.79 is: 402,660.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,545.51 : 1,301,379.08 = 268,427.79 : x
  2. Step 2: Convert to fraction form
    867,545.51/1,301,379.08 = 268,427.79/x
  3. Step 3: Cross multiply
    867,545.51x = 1,301,379.08 × 268,427.79
  4. Step 4: Simplify right side
    867,545.51x = 349,326,309,054.49
  5. Step 5: Solve for x
    x = 349,326,309,054.49/867,545.51
  6. Step 6: Final answer
    x = 402,660.50

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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.