Finding the Fourth Proportional to 637,616.64, 879,904.08 and 351,130.80
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Solution
The fourth proportional to 637,616.64, 879,904.08 and 351,130.80 is: 484,556.71
Step by Step Solution
- Step 1: Write the proportion equation
637,616.64 : 879,904.08 = 351,130.80 : x - Step 2: Convert to fraction form
637,616.64/879,904.08 = 351,130.80/x - Step 3: Cross multiply
637,616.64x = 879,904.08 × 351,130.80 - Step 4: Simplify right side
637,616.64x = 308,961,423,533.66 - Step 5: Solve for x
x = 308,961,423,533.66/637,616.64 - Step 6: Final answer
x = 484,556.71
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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.