Finding the Fourth Proportional to 630,415.74, 869,938.26 and 358,549.77
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Solution
The fourth proportional to 630,415.74, 869,938.26 and 358,549.77 is: 494,778.51
Step by Step Solution
- Step 1: Write the proportion equation
630,415.74 : 869,938.26 = 358,549.77 : x - Step 2: Convert to fraction form
630,415.74/869,938.26 = 358,549.77/x - Step 3: Cross multiply
630,415.74x = 869,938.26 × 358,549.77 - Step 4: Simplify right side
630,415.74x = 311,916,163,037.20 - Step 5: Solve for x
x = 311,916,163,037.20/630,415.74 - Step 6: Final answer
x = 494,778.51
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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.