Finding the Fourth Proportional to 519,953.10, 778,374.45 and 489,194.70
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Solution
The fourth proportional to 519,953.10, 778,374.45 and 489,194.70 is: 732,328.85
Step by Step Solution
- Step 1: Write the proportion equation
519,953.10 : 778,374.45 = 489,194.70 : x - Step 2: Convert to fraction form
519,953.10/778,374.45 = 489,194.70/x - Step 3: Cross multiply
519,953.10x = 778,374.45 × 489,194.70 - Step 4: Simplify right side
519,953.10x = 380,776,655,555.42 - Step 5: Solve for x
x = 380,776,655,555.42/519,953.10 - Step 6: Final answer
x = 732,328.85
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.