Home / 525,044.81-787,987.61-272,397.71

Finding the Fourth Proportional to 525,044.81, 787,987.61 and 272,397.71

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Solution

The fourth proportional to 525,044.81, 787,987.61 and 272,397.71 is: 408,814.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,044.81 : 787,987.61 = 272,397.71 : x
  2. Step 2: Convert to fraction form
    525,044.81/787,987.61 = 272,397.71/x
  3. Step 3: Cross multiply
    525,044.81x = 787,987.61 × 272,397.71
  4. Step 4: Simplify right side
    525,044.81x = 214,646,020,472.37
  5. Step 5: Solve for x
    x = 214,646,020,472.37/525,044.81
  6. Step 6: Final answer
    x = 408,814.67

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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.