Finding the Fourth Proportional to 528,279.84, 729,023.04 and 286,562.88
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Solution
The fourth proportional to 528,279.84, 729,023.04 and 286,562.88 is: 395,455.07
Step by Step Solution
- Step 1: Write the proportion equation
528,279.84 : 729,023.04 = 286,562.88 : x - Step 2: Convert to fraction form
528,279.84/729,023.04 = 286,562.88/x - Step 3: Cross multiply
528,279.84x = 729,023.04 × 286,562.88 - Step 4: Simplify right side
528,279.84x = 208,910,941,928.76 - Step 5: Solve for x
x = 208,910,941,928.76/528,279.84 - Step 6: Final answer
x = 395,455.07
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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.