Finding the Fourth Proportional to 865,963.70, 1,298,715.15 and 266,923.70
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Solution
The fourth proportional to 865,963.70, 1,298,715.15 and 266,923.70 is: 400,314.53
Step by Step Solution
- Step 1: Write the proportion equation
865,963.70 : 1,298,715.15 = 266,923.70 : x - Step 2: Convert to fraction form
865,963.70/1,298,715.15 = 266,923.70/x - Step 3: Cross multiply
865,963.70x = 1,298,715.15 × 266,923.70 - Step 4: Simplify right side
865,963.70x = 346,657,853,084.06 - Step 5: Solve for x
x = 346,657,853,084.06/865,963.70 - Step 6: Final answer
x = 400,314.53
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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.