Home / 915,811.98-1,263,898.18-508,045.22

Finding the Fourth Proportional to 915,811.98, 1,263,898.18 and 508,045.22

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Solution

The fourth proportional to 915,811.98, 1,263,898.18 and 508,045.22 is: 701,145.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,811.98 : 1,263,898.18 = 508,045.22 : x
  2. Step 2: Convert to fraction form
    915,811.98/1,263,898.18 = 508,045.22/x
  3. Step 3: Cross multiply
    915,811.98x = 1,263,898.18 × 508,045.22
  4. Step 4: Simplify right side
    915,811.98x = 642,117,428,915.70
  5. Step 5: Solve for x
    x = 642,117,428,915.70/915,811.98
  6. Step 6: Final answer
    x = 701,145.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.