Finding the Fourth Proportional to 528,673.14, 729,569.68 and 286,955.76
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Solution
The fourth proportional to 528,673.14, 729,569.68 and 286,955.76 is: 395,999.35
Step by Step Solution
- Step 1: Write the proportion equation
528,673.14 : 729,569.68 = 286,955.76 : x - Step 2: Convert to fraction form
528,673.14/729,569.68 = 286,955.76/x - Step 3: Cross multiply
528,673.14x = 729,569.68 × 286,955.76 - Step 4: Simplify right side
528,673.14x = 209,354,221,997.36 - Step 5: Solve for x
x = 209,354,221,997.36/528,673.14 - Step 6: Final answer
x = 395,999.35
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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.