Finding the Fourth Proportional to 520,854.70, 781,282.05 and 146,877.70
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Solution
The fourth proportional to 520,854.70, 781,282.05 and 146,877.70 is: 220,316.55
Step by Step Solution
- Step 1: Write the proportion equation
520,854.70 : 781,282.05 = 146,877.70 : x - Step 2: Convert to fraction form
520,854.70/781,282.05 = 146,877.70/x - Step 3: Cross multiply
520,854.70x = 781,282.05 × 146,877.70 - Step 4: Simplify right side
520,854.70x = 114,752,910,555.29 - Step 5: Solve for x
x = 114,752,910,555.29/520,854.70 - Step 6: Final answer
x = 220,316.55
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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.