Finding the Fourth Proportional to 685,994.84, 1,028,992.68 and 286,417.88
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Solution
The fourth proportional to 685,994.84, 1,028,992.68 and 286,417.88 is: 429,627.00
Step by Step Solution
- Step 1: Write the proportion equation
685,994.84 : 1,028,992.68 = 286,417.88 : x - Step 2: Convert to fraction form
685,994.84/1,028,992.68 = 286,417.88/x - Step 3: Cross multiply
685,994.84x = 1,028,992.68 × 286,417.88 - Step 4: Simplify right side
685,994.84x = 294,721,901,941.12 - Step 5: Solve for x
x = 294,721,901,941.12/685,994.84 - Step 6: Final answer
x = 429,627.00
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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.