Home / 487,814.52-731,931.16-188,505.34

Finding the Fourth Proportional to 487,814.52, 731,931.16 and 188,505.34

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Solution

The fourth proportional to 487,814.52, 731,931.16 and 188,505.34 is: 282,838.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,814.52 : 731,931.16 = 188,505.34 : x
  2. Step 2: Convert to fraction form
    487,814.52/731,931.16 = 188,505.34/x
  3. Step 3: Cross multiply
    487,814.52x = 731,931.16 × 188,505.34
  4. Step 4: Simplify right side
    487,814.52x = 137,972,934,872.04
  5. Step 5: Solve for x
    x = 137,972,934,872.04/487,814.52
  6. Step 6: Final answer
    x = 282,838.93

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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.