Finding the Fourth Proportional to 874,620,882.64, 1,206,919,302.60 and 503,282,979.28
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Solution
The fourth proportional to 874,620,882.64, 1,206,919,302.60 and 503,282,979.28 is: 694,497,415.30
Step by Step Solution
- Step 1: Write the proportion equation
874,620,882.64 : 1,206,919,302.60 = 503,282,979.28 : x - Step 2: Convert to fraction form
874,620,882.64/1,206,919,302.60 = 503,282,979.28/x - Step 3: Cross multiply
874,620,882.64x = 1,206,919,302.60 × 503,282,979.28 - Step 4: Simplify right side
874,620,882.64x = 607,421,942,363,067,776 - Step 5: Solve for x
x = 607,421,942,363,067,776/874,620,882.64 - Step 6: Final answer
x = 694,497,415.30
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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.