Finding the Fourth Proportional to 742,438.16, 1,113,620.29 and 406,135.67
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Solution
The fourth proportional to 742,438.16, 1,113,620.29 and 406,135.67 is: 609,183.30
Step by Step Solution
- Step 1: Write the proportion equation
742,438.16 : 1,113,620.29 = 406,135.67 : x - Step 2: Convert to fraction form
742,438.16/1,113,620.29 = 406,135.67/x - Step 3: Cross multiply
742,438.16x = 1,113,620.29 × 406,135.67 - Step 4: Simplify right side
742,438.16x = 452,280,924,373.46 - Step 5: Solve for x
x = 452,280,924,373.46/742,438.16 - Step 6: Final answer
x = 609,183.30
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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.