Finding the Fourth Proportional to 554,823.84, 765,656.64 and 313,157.10
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Solution
The fourth proportional to 554,823.84, 765,656.64 and 313,157.10 is: 432,156.65
Step by Step Solution
- Step 1: Write the proportion equation
554,823.84 : 765,656.64 = 313,157.10 : x - Step 2: Convert to fraction form
554,823.84/765,656.64 = 313,157.10/x - Step 3: Cross multiply
554,823.84x = 765,656.64 × 313,157.10 - Step 4: Simplify right side
554,823.84x = 239,770,812,978.14 - Step 5: Solve for x
x = 239,770,812,978.14/554,823.84 - Step 6: Final answer
x = 432,156.65
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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.