Finding the Fourth Proportional to 860,897.42, 1,187,717.55 and 538,485.02
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Solution
The fourth proportional to 860,897.42, 1,187,717.55 and 538,485.02 is: 742,908.61
Step by Step Solution
- Step 1: Write the proportion equation
860,897.42 : 1,187,717.55 = 538,485.02 : x - Step 2: Convert to fraction form
860,897.42/1,187,717.55 = 538,485.02/x - Step 3: Cross multiply
860,897.42x = 1,187,717.55 × 538,485.02 - Step 4: Simplify right side
860,897.42x = 639,568,108,666.10 - Step 5: Solve for x
x = 639,568,108,666.10/860,897.42 - Step 6: Final answer
x = 742,908.61
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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.