Finding the Fourth Proportional to 717,316.74, 989,599.95 and 426,870.09
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Solution
The fourth proportional to 717,316.74, 989,599.95 and 426,870.09 is: 588,903.89
Step by Step Solution
- Step 1: Write the proportion equation
717,316.74 : 989,599.95 = 426,870.09 : x - Step 2: Convert to fraction form
717,316.74/989,599.95 = 426,870.09/x - Step 3: Cross multiply
717,316.74x = 989,599.95 × 426,870.09 - Step 4: Simplify right side
717,316.74x = 422,430,619,720.50 - Step 5: Solve for x
x = 422,430,619,720.50/717,316.74 - Step 6: Final answer
x = 588,903.89
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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.