Finding the Fourth Proportional to 1,112,116.17, 1,668,303.87 and 402,478.41
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Solution
The fourth proportional to 1,112,116.17, 1,668,303.87 and 402,478.41 is: 603,764.53
Step by Step Solution
- Step 1: Write the proportion equation
1,112,116.17 : 1,668,303.87 = 402,478.41 : x - Step 2: Convert to fraction form
1,112,116.17/1,668,303.87 = 402,478.41/x - Step 3: Cross multiply
1,112,116.17x = 1,668,303.87 × 402,478.41 - Step 4: Simplify right side
1,112,116.17x = 671,456,293,741.29 - Step 5: Solve for x
x = 671,456,293,741.29/1,112,116.17 - Step 6: Final answer
x = 603,764.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.