Finding the Fourth Proportional to 715,975.77, 987,129.36 and 586,437.03
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Solution
The fourth proportional to 715,975.77, 987,129.36 and 586,437.03 is: 808,531.84
Step by Step Solution
- Step 1: Write the proportion equation
715,975.77 : 987,129.36 = 586,437.03 : x - Step 2: Convert to fraction form
715,975.77/987,129.36 = 586,437.03/x - Step 3: Cross multiply
715,975.77x = 987,129.36 × 586,437.03 - Step 4: Simplify right side
715,975.77x = 578,889,210,104.20 - Step 5: Solve for x
x = 578,889,210,104.20/715,975.77 - Step 6: Final answer
x = 808,531.84
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1.5x scale
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.