Finding the Fourth Proportional to 717,670.16, 989,022.10 and 513,366.26
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Solution
The fourth proportional to 717,670.16, 989,022.10 and 513,366.26 is: 707,470.65
Step by Step Solution
- Step 1: Write the proportion equation
717,670.16 : 989,022.10 = 513,366.26 : x - Step 2: Convert to fraction form
717,670.16/989,022.10 = 513,366.26/x - Step 3: Cross multiply
717,670.16x = 989,022.10 × 513,366.26 - Step 4: Simplify right side
717,670.16x = 507,730,571,268.38 - Step 5: Solve for x
x = 507,730,571,268.38/717,670.16 - Step 6: Final answer
x = 707,470.65
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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.