Finding the Fourth Proportional to 921,347.84, 1,271,461.25 and 513,440.75
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Solution
The fourth proportional to 921,347.84, 1,271,461.25 and 513,440.75 is: 708,548.92
Step by Step Solution
- Step 1: Write the proportion equation
921,347.84 : 1,271,461.25 = 513,440.75 : x - Step 2: Convert to fraction form
921,347.84/1,271,461.25 = 513,440.75/x - Step 3: Cross multiply
921,347.84x = 1,271,461.25 × 513,440.75 - Step 4: Simplify right side
921,347.84x = 652,820,017,795.94 - Step 5: Solve for x
x = 652,820,017,795.94/921,347.84 - Step 6: Final answer
x = 708,548.92
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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.