Finding the Fourth Proportional to 556,468.68, 767,931.12 and 301,819.80
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Solution
The fourth proportional to 556,468.68, 767,931.12 and 301,819.80 is: 416,513.68
Step by Step Solution
- Step 1: Write the proportion equation
556,468.68 : 767,931.12 = 301,819.80 : x - Step 2: Convert to fraction form
556,468.68/767,931.12 = 301,819.80/x - Step 3: Cross multiply
556,468.68x = 767,931.12 × 301,819.80 - Step 4: Simplify right side
556,468.68x = 231,776,817,052.18 - Step 5: Solve for x
x = 231,776,817,052.18/556,468.68 - Step 6: Final answer
x = 416,513.68
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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.