Finding the Fourth Proportional to 1,578,813.84, 2,178,758.52 and 853,656.48
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Solution
The fourth proportional to 1,578,813.84, 2,178,758.52 and 853,656.48 is: 1,178,043.47
Step by Step Solution
- Step 1: Write the proportion equation
1,578,813.84 : 2,178,758.52 = 853,656.48 : x - Step 2: Convert to fraction form
1,578,813.84/2,178,758.52 = 853,656.48/x - Step 3: Cross multiply
1,578,813.84x = 2,178,758.52 × 853,656.48 - Step 4: Simplify right side
1,578,813.84x = 1,859,911,328,953.21 - Step 5: Solve for x
x = 1,859,911,328,953.21/1,578,813.84 - Step 6: Final answer
x = 1,178,043.47
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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.