Finding the Fourth Proportional to 528,646.36, 729,532.77 and 286,929.02
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Solution
The fourth proportional to 528,646.36, 729,532.77 and 286,929.02 is: 395,962.48
Step by Step Solution
- Step 1: Write the proportion equation
528,646.36 : 729,532.77 = 286,929.02 : x - Step 2: Convert to fraction form
528,646.36/729,532.77 = 286,929.02/x - Step 3: Cross multiply
528,646.36x = 729,532.77 × 286,929.02 - Step 4: Simplify right side
528,646.36x = 209,324,122,753.99 - Step 5: Solve for x
x = 209,324,122,753.99/528,646.36 - Step 6: Final answer
x = 395,962.48
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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.