Home / 487,814.80-731,931.58-188,505.62

Finding the Fourth Proportional to 487,814.80, 731,931.58 and 188,505.62

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Solution

The fourth proportional to 487,814.80, 731,931.58 and 188,505.62 is: 282,839.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,814.80 : 731,931.58 = 188,505.62 : x
  2. Step 2: Convert to fraction form
    487,814.80/731,931.58 = 188,505.62/x
  3. Step 3: Cross multiply
    487,814.80x = 731,931.58 × 188,505.62
  4. Step 4: Simplify right side
    487,814.80x = 137,973,220,253.48
  5. Step 5: Solve for x
    x = 137,973,220,253.48/487,814.80
  6. Step 6: Final answer
    x = 282,839.35

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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.