Finding the Fourth Proportional to 875,125.98, 1,207,783.83 and 512,688.15
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Solution
The fourth proportional to 875,125.98, 1,207,783.83 and 512,688.15 is: 707,574.08
Step by Step Solution
- Step 1: Write the proportion equation
875,125.98 : 1,207,783.83 = 512,688.15 : x - Step 2: Convert to fraction form
875,125.98/1,207,783.83 = 512,688.15/x - Step 3: Cross multiply
875,125.98x = 1,207,783.83 × 512,688.15 - Step 4: Simplify right side
875,125.98x = 619,216,457,402.62 - Step 5: Solve for x
x = 619,216,457,402.62/875,125.98 - Step 6: Final answer
x = 707,574.08
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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.