Finding the Fourth Proportional to 419,730.78, 579,211.58 and 228,740.07
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Solution
The fourth proportional to 419,730.78, 579,211.58 and 228,740.07 is: 315,652.09
Step by Step Solution
- Step 1: Write the proportion equation
419,730.78 : 579,211.58 = 228,740.07 : x - Step 2: Convert to fraction form
419,730.78/579,211.58 = 228,740.07/x - Step 3: Cross multiply
419,730.78x = 579,211.58 × 228,740.07 - Step 4: Simplify right side
419,730.78x = 132,488,896,210.31 - Step 5: Solve for x
x = 132,488,896,210.31/419,730.78 - Step 6: Final answer
x = 315,652.09
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.