Home / 326,390.04-489,319.38-126,607.32

Finding the Fourth Proportional to 326,390.04, 489,319.38 and 126,607.32

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Solution

The fourth proportional to 326,390.04, 489,319.38 and 126,607.32 is: 189,807.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,390.04 : 489,319.38 = 126,607.32 : x
  2. Step 2: Convert to fraction form
    326,390.04/489,319.38 = 126,607.32/x
  3. Step 3: Cross multiply
    326,390.04x = 489,319.38 × 126,607.32
  4. Step 4: Simplify right side
    326,390.04x = 61,951,415,325.86
  5. Step 5: Solve for x
    x = 61,951,415,325.86/326,390.04
  6. Step 6: Final answer
    x = 189,807.92

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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.