Finding the Fourth Proportional to 1,021,051.68, 1,531,682.28 and 390,495.84
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Solution
The fourth proportional to 1,021,051.68, 1,531,682.28 and 390,495.84 is: 585,783.82
Step by Step Solution
- Step 1: Write the proportion equation
1,021,051.68 : 1,531,682.28 = 390,495.84 : x - Step 2: Convert to fraction form
1,021,051.68/1,531,682.28 = 390,495.84/x - Step 3: Cross multiply
1,021,051.68x = 1,531,682.28 × 390,495.84 - Step 4: Simplify right side
1,021,051.68x = 598,115,558,541.72 - Step 5: Solve for x
x = 598,115,558,541.72/1,021,051.68 - Step 6: Final answer
x = 585,783.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.