Finding the Fourth Proportional to 942,421.42, 1,300,557.09 and 512,701.84
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Solution
The fourth proportional to 942,421.42, 1,300,557.09 and 512,701.84 is: 707,536.99
Step by Step Solution
- Step 1: Write the proportion equation
942,421.42 : 1,300,557.09 = 512,701.84 : x - Step 2: Convert to fraction form
942,421.42/1,300,557.09 = 512,701.84/x - Step 3: Cross multiply
942,421.42x = 1,300,557.09 × 512,701.84 - Step 4: Simplify right side
942,421.42x = 666,798,013,068.05 - Step 5: Solve for x
x = 666,798,013,068.05/942,421.42 - Step 6: Final answer
x = 707,536.99
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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.