Finding the Fourth Proportional to 528,641.84, 729,536.62 and 299,199.12
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Solution
The fourth proportional to 528,641.84, 729,536.62 and 299,199.12 is: 412,900.94
Step by Step Solution
- Step 1: Write the proportion equation
528,641.84 : 729,536.62 = 299,199.12 : x - Step 2: Convert to fraction form
528,641.84/729,536.62 = 299,199.12/x - Step 3: Cross multiply
528,641.84x = 729,536.62 × 299,199.12 - Step 4: Simplify right side
528,641.84x = 218,276,714,711.77 - Step 5: Solve for x
x = 218,276,714,711.77/528,641.84 - Step 6: Final answer
x = 412,900.94
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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.