Home / 648,055.26-972,240.65-215,771.58

Finding the Fourth Proportional to 648,055.26, 972,240.65 and 215,771.58

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Solution

The fourth proportional to 648,055.26, 972,240.65 and 215,771.58 is: 323,709.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,055.26 : 972,240.65 = 215,771.58 : x
  2. Step 2: Convert to fraction form
    648,055.26/972,240.65 = 215,771.58/x
  3. Step 3: Cross multiply
    648,055.26x = 972,240.65 × 215,771.58
  4. Step 4: Simplify right side
    648,055.26x = 209,781,904,415.81
  5. Step 5: Solve for x
    x = 209,781,904,415.81/648,055.26
  6. Step 6: Final answer
    x = 323,709.90

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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.