Finding the Fourth Proportional to 916,900.08, 1,265,302.08 and 508,978.08
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Solution
The fourth proportional to 916,900.08, 1,265,302.08 and 508,978.08 is: 702,378.63
Step by Step Solution
- Step 1: Write the proportion equation
916,900.08 : 1,265,302.08 = 508,978.08 : x - Step 2: Convert to fraction form
916,900.08/1,265,302.08 = 508,978.08/x - Step 3: Cross multiply
916,900.08x = 1,265,302.08 × 508,978.08 - Step 4: Simplify right side
916,900.08x = 644,011,023,298.41 - Step 5: Solve for x
x = 644,011,023,298.41/916,900.08 - Step 6: Final answer
x = 702,378.63
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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.