Finding the Fourth Proportional to 870,569.98, 1,201,503.81 and 488,617.66
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Solution
The fourth proportional to 870,569.98, 1,201,503.81 and 488,617.66 is: 674,358.17
Step by Step Solution
- Step 1: Write the proportion equation
870,569.98 : 1,201,503.81 = 488,617.66 : x - Step 2: Convert to fraction form
870,569.98/1,201,503.81 = 488,617.66/x - Step 3: Cross multiply
870,569.98x = 1,201,503.81 × 488,617.66 - Step 4: Simplify right side
870,569.98x = 587,075,980,123.29 - Step 5: Solve for x
x = 587,075,980,123.29/870,569.98 - Step 6: Final answer
x = 674,358.17
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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.