Home / 385,580.32-577,364.45-310,289.20

Finding the Fourth Proportional to 385,580.32, 577,364.45 and 310,289.20

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Solution

The fourth proportional to 385,580.32, 577,364.45 and 310,289.20 is: 464,624.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,580.32 : 577,364.45 = 310,289.20 : x
  2. Step 2: Convert to fraction form
    385,580.32/577,364.45 = 310,289.20/x
  3. Step 3: Cross multiply
    385,580.32x = 577,364.45 × 310,289.20
  4. Step 4: Simplify right side
    385,580.32x = 179,149,951,187.84
  5. Step 5: Solve for x
    x = 179,149,951,187.84/385,580.32
  6. Step 6: Final answer
    x = 464,624.22

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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.