Home / 648,828.34-972,630.12-312,059.50

Finding the Fourth Proportional to 648,828.34, 972,630.12 and 312,059.50

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Solution

The fourth proportional to 648,828.34, 972,630.12 and 312,059.50 is: 467,794.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,828.34 : 972,630.12 = 312,059.50 : x
  2. Step 2: Convert to fraction form
    648,828.34/972,630.12 = 312,059.50/x
  3. Step 3: Cross multiply
    648,828.34x = 972,630.12 × 312,059.50
  4. Step 4: Simplify right side
    648,828.34x = 303,518,468,932.14
  5. Step 5: Solve for x
    x = 303,518,468,932.14/648,828.34
  6. Step 6: Final answer
    x = 467,794.72

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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.