Finding the Fourth Proportional to 615,261.80, 922,028.70 and 489,117.80
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Solution
The fourth proportional to 615,261.80, 922,028.70 and 489,117.80 is: 732,989.84
Step by Step Solution
- Step 1: Write the proportion equation
615,261.80 : 922,028.70 = 489,117.80 : x - Step 2: Convert to fraction form
615,261.80/922,028.70 = 489,117.80/x - Step 3: Cross multiply
615,261.80x = 922,028.70 × 489,117.80 - Step 4: Simplify right side
615,261.80x = 450,980,649,280.86 - Step 5: Solve for x
x = 450,980,649,280.86/615,261.80 - Step 6: Final answer
x = 732,989.84
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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.