Finding the Fourth Proportional to 630,344.70, 869,916.84 and 358,437.92
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Solution
The fourth proportional to 630,344.70, 869,916.84 and 358,437.92 is: 494,667.73
Step by Step Solution
- Step 1: Write the proportion equation
630,344.70 : 869,916.84 = 358,437.92 : x - Step 2: Convert to fraction form
630,344.70/869,916.84 = 358,437.92/x - Step 3: Cross multiply
630,344.70x = 869,916.84 × 358,437.92 - Step 4: Simplify right side
630,344.70x = 311,811,182,702.57 - Step 5: Solve for x
x = 311,811,182,702.57/630,344.70 - Step 6: Final answer
x = 494,667.73
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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.