Finding the Fourth Proportional to 630,125.10, 869,538.08 and 358,155.26
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Solution
The fourth proportional to 630,125.10, 869,538.08 and 358,155.26 is: 494,234.61
Step by Step Solution
- Step 1: Write the proportion equation
630,125.10 : 869,538.08 = 358,155.26 : x - Step 2: Convert to fraction form
630,125.10/869,538.08 = 358,155.26/x - Step 3: Cross multiply
630,125.10x = 869,538.08 × 358,155.26 - Step 4: Simplify right side
630,125.10x = 311,429,630,983.83 - Step 5: Solve for x
x = 311,429,630,983.83/630,125.10 - Step 6: Final answer
x = 494,234.61
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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.