Finding the Fourth Proportional to 716,390.84, 987,940.84 and 458,349.45
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Solution
The fourth proportional to 716,390.84, 987,940.84 and 458,349.45 is: 632,088.12
Step by Step Solution
- Step 1: Write the proportion equation
716,390.84 : 987,940.84 = 458,349.45 : x - Step 2: Convert to fraction form
716,390.84/987,940.84 = 458,349.45/x - Step 3: Cross multiply
716,390.84x = 987,940.84 × 458,349.45 - Step 4: Simplify right side
716,390.84x = 452,822,140,646.54 - Step 5: Solve for x
x = 452,822,140,646.54/716,390.84 - Step 6: Final answer
x = 632,088.12
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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.