Finding the Fourth Proportional to 1,319,298.98, 1,820,636.08 and 715,686.98
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Solution
The fourth proportional to 1,319,298.98, 1,820,636.08 and 715,686.98 is: 987,649.92
Step by Step Solution
- Step 1: Write the proportion equation
1,319,298.98 : 1,820,636.08 = 715,686.98 : x - Step 2: Convert to fraction form
1,319,298.98/1,820,636.08 = 715,686.98/x - Step 3: Cross multiply
1,319,298.98x = 1,820,636.08 × 715,686.98 - Step 4: Simplify right side
1,319,298.98x = 1,303,005,537,774.24 - Step 5: Solve for x
x = 1,303,005,537,774.24/1,319,298.98 - Step 6: Final answer
x = 987,649.92
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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.