Finding the Fourth Proportional to 1,288,564.32, 1,779,108.36 and 805,346.66
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Solution
The fourth proportional to 1,288,564.32, 1,779,108.36 and 805,346.66 is: 1,111,934.39
Step by Step Solution
- Step 1: Write the proportion equation
1,288,564.32 : 1,779,108.36 = 805,346.66 : x - Step 2: Convert to fraction form
1,288,564.32/1,779,108.36 = 805,346.66/x - Step 3: Cross multiply
1,288,564.32x = 1,779,108.36 × 805,346.66 - Step 4: Simplify right side
1,288,564.32x = 1,432,798,975,504.08 - Step 5: Solve for x
x = 1,432,798,975,504.08/1,288,564.32 - Step 6: Final answer
x = 1,111,934.39
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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.