Finding the Fourth Proportional to 724,335.09, 999,533.97 and 438,013.05
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Solution
The fourth proportional to 724,335.09, 999,533.97 and 438,013.05 is: 604,428.71
Step by Step Solution
- Step 1: Write the proportion equation
724,335.09 : 999,533.97 = 438,013.05 : x - Step 2: Convert to fraction form
724,335.09/999,533.97 = 438,013.05/x - Step 3: Cross multiply
724,335.09x = 999,533.97 × 438,013.05 - Step 4: Simplify right side
724,335.09x = 437,808,922,778.31 - Step 5: Solve for x
x = 437,808,922,778.31/724,335.09 - Step 6: Final answer
x = 604,428.71
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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.