Finding the Fourth Proportional to 669,931.60, 924,495.12 and 368,119.12
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Solution
The fourth proportional to 669,931.60, 924,495.12 and 368,119.12 is: 507,998.62
Step by Step Solution
- Step 1: Write the proportion equation
669,931.60 : 924,495.12 = 368,119.12 : x - Step 2: Convert to fraction form
669,931.60/924,495.12 = 368,119.12/x - Step 3: Cross multiply
669,931.60x = 924,495.12 × 368,119.12 - Step 4: Simplify right side
669,931.60x = 340,324,330,018.69 - Step 5: Solve for x
x = 340,324,330,018.69/669,931.60 - Step 6: Final answer
x = 507,998.62
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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.