Finding the Fourth Proportional to 556,465.19, 767,921.99 and 314,742.56
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Solution
The fourth proportional to 556,465.19, 767,921.99 and 314,742.56 is: 434,344.74
Step by Step Solution
- Step 1: Write the proportion equation
556,465.19 : 767,921.99 = 314,742.56 : x - Step 2: Convert to fraction form
556,465.19/767,921.99 = 314,742.56/x - Step 3: Cross multiply
556,465.19x = 767,921.99 × 314,742.56 - Step 4: Simplify right side
556,465.19x = 241,697,727,599.57 - Step 5: Solve for x
x = 241,697,727,599.57/556,465.19 - Step 6: Final answer
x = 434,344.74
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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.