Finding the Fourth Proportional to 549,179.12, 757,909.12 and 316,643.84
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Solution
The fourth proportional to 549,179.12, 757,909.12 and 316,643.84 is: 436,992.68
Step by Step Solution
- Step 1: Write the proportion equation
549,179.12 : 757,909.12 = 316,643.84 : x - Step 2: Convert to fraction form
549,179.12/757,909.12 = 316,643.84/x - Step 3: Cross multiply
549,179.12x = 757,909.12 × 316,643.84 - Step 4: Simplify right side
549,179.12x = 239,987,254,127.82 - Step 5: Solve for x
x = 239,987,254,127.82/549,179.12 - Step 6: Final answer
x = 436,992.68
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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.