Finding the Fourth Proportional to 876,176.19, 1,208,701.44 and 513,374.76
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Solution
The fourth proportional to 876,176.19, 1,208,701.44 and 513,374.76 is: 708,210.08
Step by Step Solution
- Step 1: Write the proportion equation
876,176.19 : 1,208,701.44 = 513,374.76 : x - Step 2: Convert to fraction form
876,176.19/1,208,701.44 = 513,374.76/x - Step 3: Cross multiply
876,176.19x = 1,208,701.44 × 513,374.76 - Step 4: Simplify right side
876,176.19x = 620,516,811,671.65 - Step 5: Solve for x
x = 620,516,811,671.65/876,176.19 - Step 6: Final answer
x = 708,210.08
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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.