Finding the Fourth Proportional to 938,879.91, 1,295,709.08 and 531,017.91
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Solution
The fourth proportional to 938,879.91, 1,295,709.08 and 531,017.91 is: 732,835.71
Step by Step Solution
- Step 1: Write the proportion equation
938,879.91 : 1,295,709.08 = 531,017.91 : x - Step 2: Convert to fraction form
938,879.91/1,295,709.08 = 531,017.91/x - Step 3: Cross multiply
938,879.91x = 1,295,709.08 × 531,017.91 - Step 4: Simplify right side
938,879.91x = 688,044,724,974.53 - Step 5: Solve for x
x = 688,044,724,974.53/938,879.91 - Step 6: Final answer
x = 732,835.71
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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.