Finding the Fourth Proportional to 637,119.99, 879,209.44 and 346,719.21
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Solution
The fourth proportional to 637,119.99, 879,209.44 and 346,719.21 is: 478,463.72
Step by Step Solution
- Step 1: Write the proportion equation
637,119.99 : 879,209.44 = 346,719.21 : x - Step 2: Convert to fraction form
637,119.99/879,209.44 = 346,719.21/x - Step 3: Cross multiply
637,119.99x = 879,209.44 × 346,719.21 - Step 4: Simplify right side
637,119.99x = 304,838,802,461.34 - Step 5: Solve for x
x = 304,838,802,461.34/637,119.99 - Step 6: Final answer
x = 478,463.72
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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.