Finding the Fourth Proportional to 570,277.12, 786,848.68 and 389,365.80
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Solution
The fourth proportional to 570,277.12, 786,848.68 and 389,365.80 is: 537,233.49
Step by Step Solution
- Step 1: Write the proportion equation
570,277.12 : 786,848.68 = 389,365.80 : x - Step 2: Convert to fraction form
570,277.12/786,848.68 = 389,365.80/x - Step 3: Cross multiply
570,277.12x = 786,848.68 × 389,365.80 - Step 4: Simplify right side
570,277.12x = 306,371,965,767.14 - Step 5: Solve for x
x = 306,371,965,767.14/570,277.12 - Step 6: Final answer
x = 537,233.49
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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.