Finding the Fourth Proportional to 630,455.52, 870,349.68 and 486,893.28
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Solution
The fourth proportional to 630,455.52, 870,349.68 and 486,893.28 is: 672,160.68
Step by Step Solution
- Step 1: Write the proportion equation
630,455.52 : 870,349.68 = 486,893.28 : x - Step 2: Convert to fraction form
630,455.52/870,349.68 = 486,893.28/x - Step 3: Cross multiply
630,455.52x = 870,349.68 × 486,893.28 - Step 4: Simplify right side
630,455.52x = 423,767,410,442.15 - Step 5: Solve for x
x = 423,767,410,442.15/630,455.52 - Step 6: Final answer
x = 672,160.68
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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.