Finding the Fourth Proportional to 640,070.02, 883,263.99 and 353,534.68
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Solution
The fourth proportional to 640,070.02, 883,263.99 and 353,534.68 is: 487,859.83
Step by Step Solution
- Step 1: Write the proportion equation
640,070.02 : 883,263.99 = 353,534.68 : x - Step 2: Convert to fraction form
640,070.02/883,263.99 = 353,534.68/x - Step 3: Cross multiply
640,070.02x = 883,263.99 × 353,534.68 - Step 4: Simplify right side
640,070.02x = 312,264,452,060.17 - Step 5: Solve for x
x = 312,264,452,060.17/640,070.02 - Step 6: Final answer
x = 487,859.83
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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.