Finding the Fourth Proportional to 817,288.17, 1,127,829.27 and 449,730.96
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Solution
The fourth proportional to 817,288.17, 1,127,829.27 and 449,730.96 is: 620,613.09
Step by Step Solution
- Step 1: Write the proportion equation
817,288.17 : 1,127,829.27 = 449,730.96 : x - Step 2: Convert to fraction form
817,288.17/1,127,829.27 = 449,730.96/x - Step 3: Cross multiply
817,288.17x = 1,127,829.27 × 449,730.96 - Step 4: Simplify right side
817,288.17x = 507,219,740,313.20 - Step 5: Solve for x
x = 507,219,740,313.20/817,288.17 - Step 6: Final answer
x = 620,613.09
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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.