Finding the Fourth Proportional to 637,118.99, 879,208.06 and 346,718.21
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Solution
The fourth proportional to 637,118.99, 879,208.06 and 346,718.21 is: 478,462.34
Step by Step Solution
- Step 1: Write the proportion equation
637,118.99 : 879,208.06 = 346,718.21 : x - Step 2: Convert to fraction form
637,118.99/879,208.06 = 346,718.21/x - Step 3: Cross multiply
637,118.99x = 879,208.06 × 346,718.21 - Step 4: Simplify right side
637,118.99x = 304,837,439,517.94 - Step 5: Solve for x
x = 304,837,439,517.94/637,118.99 - Step 6: Final answer
x = 478,462.34
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1.5x scale
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.