Finding the Fourth Proportional to 897,612.24, 1,238,814.42 and 515,638.08
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Solution
The fourth proportional to 897,612.24, 1,238,814.42 and 515,638.08 is: 711,643.47
Step by Step Solution
- Step 1: Write the proportion equation
897,612.24 : 1,238,814.42 = 515,638.08 : x - Step 2: Convert to fraction form
897,612.24/1,238,814.42 = 515,638.08/x - Step 3: Cross multiply
897,612.24x = 1,238,814.42 × 515,638.08 - Step 4: Simplify right side
897,612.24x = 638,779,889,005.11 - Step 5: Solve for x
x = 638,779,889,005.11/897,612.24 - Step 6: Final answer
x = 711,643.47
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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.