Finding the Fourth Proportional to 1,167,774.84, 1,611,641.95 and 708,783.68
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Solution
The fourth proportional to 1,167,774.84, 1,611,641.95 and 708,783.68 is: 978,189.87
Step by Step Solution
- Step 1: Write the proportion equation
1,167,774.84 : 1,611,641.95 = 708,783.68 : x - Step 2: Convert to fraction form
1,167,774.84/1,611,641.95 = 708,783.68/x - Step 3: Cross multiply
1,167,774.84x = 1,611,641.95 × 708,783.68 - Step 4: Simplify right side
1,167,774.84x = 1,142,305,514,420.52 - Step 5: Solve for x
x = 1,142,305,514,420.52/1,167,774.84 - Step 6: Final answer
x = 978,189.87
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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.