Finding the Fourth Proportional to 516,965.12, 713,428.40 and 313,054.08
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Solution
The fourth proportional to 516,965.12, 713,428.40 and 313,054.08 is: 432,024.64
Step by Step Solution
- Step 1: Write the proportion equation
516,965.12 : 713,428.40 = 313,054.08 : x - Step 2: Convert to fraction form
516,965.12/713,428.40 = 313,054.08/x - Step 3: Cross multiply
516,965.12x = 713,428.40 × 313,054.08 - Step 4: Simplify right side
516,965.12x = 223,341,671,407.87 - Step 5: Solve for x
x = 223,341,671,407.87/516,965.12 - Step 6: Final answer
x = 432,024.64
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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.