Finding the Fourth Proportional to 630,405.08, 869,954.88 and 358,473.02
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Solution
The fourth proportional to 630,405.08, 869,954.88 and 358,473.02 is: 494,690.42
Step by Step Solution
- Step 1: Write the proportion equation
630,405.08 : 869,954.88 = 358,473.02 : x - Step 2: Convert to fraction form
630,405.08/869,954.88 = 358,473.02/x - Step 3: Cross multiply
630,405.08x = 869,954.88 × 358,473.02 - Step 4: Simplify right side
630,405.08x = 311,855,353,097.34 - Step 5: Solve for x
x = 311,855,353,097.34/630,405.08 - Step 6: Final answer
x = 494,690.42
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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.