Finding the Fourth Proportional to 785,534.49, 1,178,818.41 and 430,797.62
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Solution
The fourth proportional to 785,534.49, 1,178,818.41 and 430,797.62 is: 646,479.77
Step by Step Solution
- Step 1: Write the proportion equation
785,534.49 : 1,178,818.41 = 430,797.62 : x - Step 2: Convert to fraction form
785,534.49/1,178,818.41 = 430,797.62/x - Step 3: Cross multiply
785,534.49x = 1,178,818.41 × 430,797.62 - Step 4: Simplify right side
785,534.49x = 507,832,159,546.09 - Step 5: Solve for x
x = 507,832,159,546.09/785,534.49 - Step 6: Final answer
x = 646,479.77
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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.