Home / 386,470.04-578,788.74-306,250.07

Finding the Fourth Proportional to 386,470.04, 578,788.74 and 306,250.07

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Solution

The fourth proportional to 386,470.04, 578,788.74 and 306,250.07 is: 458,648.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,470.04 : 578,788.74 = 306,250.07 : x
  2. Step 2: Convert to fraction form
    386,470.04/578,788.74 = 306,250.07/x
  3. Step 3: Cross multiply
    386,470.04x = 578,788.74 × 306,250.07
  4. Step 4: Simplify right side
    386,470.04x = 177,254,089,246.27
  5. Step 5: Solve for x
    x = 177,254,089,246.27/386,470.04
  6. Step 6: Final answer
    x = 458,648.98

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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.