Home / 420,345.96-630,804.54-171,073.32

Finding the Fourth Proportional to 420,345.96, 630,804.54 and 171,073.32

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Solution

The fourth proportional to 420,345.96, 630,804.54 and 171,073.32 is: 256,726.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,345.96 : 630,804.54 = 171,073.32 : x
  2. Step 2: Convert to fraction form
    420,345.96/630,804.54 = 171,073.32/x
  3. Step 3: Cross multiply
    420,345.96x = 630,804.54 × 171,073.32
  4. Step 4: Simplify right side
    420,345.96x = 107,913,826,928.87
  5. Step 5: Solve for x
    x = 107,913,826,928.87/420,345.96
  6. Step 6: Final answer
    x = 256,726.21

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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.