Finding the Fourth Proportional to 563,023.13, 776,987.01 and 317,988.23
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Solution
The fourth proportional to 563,023.13, 776,987.01 and 317,988.23 is: 438,832.28
Step by Step Solution
- Step 1: Write the proportion equation
563,023.13 : 776,987.01 = 317,988.23 : x - Step 2: Convert to fraction form
563,023.13/776,987.01 = 317,988.23/x - Step 3: Cross multiply
563,023.13x = 776,987.01 × 317,988.23 - Step 4: Simplify right side
563,023.13x = 247,072,720,157.96 - Step 5: Solve for x
x = 247,072,720,157.96/563,023.13 - Step 6: Final answer
x = 438,832.28
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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.