Home / 845,049.51-1,266,688.49-312,230.70

Finding the Fourth Proportional to 845,049.51, 1,266,688.49 and 312,230.70

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Solution

The fourth proportional to 845,049.51, 1,266,688.49 and 312,230.70 is: 468,018.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,049.51 : 1,266,688.49 = 312,230.70 : x
  2. Step 2: Convert to fraction form
    845,049.51/1,266,688.49 = 312,230.70/x
  3. Step 3: Cross multiply
    845,049.51x = 1,266,688.49 × 312,230.70
  4. Step 4: Simplify right side
    845,049.51x = 395,499,032,353.49
  5. Step 5: Solve for x
    x = 395,499,032,353.49/845,049.51
  6. Step 6: Final answer
    x = 468,018.77

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Double scale
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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.