Finding the Fourth Proportional to 714,289.18, 985,438.47 and 408,201.35
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Solution
The fourth proportional to 714,289.18, 985,438.47 and 408,201.35 is: 563,157.51
Step by Step Solution
- Step 1: Write the proportion equation
714,289.18 : 985,438.47 = 408,201.35 : x - Step 2: Convert to fraction form
714,289.18/985,438.47 = 408,201.35/x - Step 3: Cross multiply
714,289.18x = 985,438.47 × 408,201.35 - Step 4: Simplify right side
714,289.18x = 402,257,316,259.53 - Step 5: Solve for x
x = 402,257,316,259.53/714,289.18 - Step 6: Final answer
x = 563,157.51
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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.