Home / 915,814.23-1,263,901.28-508,047.47

Finding the Fourth Proportional to 915,814.23, 1,263,901.28 and 508,047.47

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Solution

The fourth proportional to 915,814.23, 1,263,901.28 and 508,047.47 is: 701,148.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,814.23 : 1,263,901.28 = 508,047.47 : x
  2. Step 2: Convert to fraction form
    915,814.23/1,263,901.28 = 508,047.47/x
  3. Step 3: Cross multiply
    915,814.23x = 1,263,901.28 × 508,047.47
  4. Step 4: Simplify right side
    915,814.23x = 642,121,847,633.76
  5. Step 5: Solve for x
    x = 642,121,847,633.76/915,814.23
  6. Step 6: Final answer
    x = 701,148.58

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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.