Finding the Fourth Proportional to 614,235.80, 921,353.70 and 561,091.70
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Solution
The fourth proportional to 614,235.80, 921,353.70 and 561,091.70 is: 841,637.55
Step by Step Solution
- Step 1: Write the proportion equation
614,235.80 : 921,353.70 = 561,091.70 : x - Step 2: Convert to fraction form
614,235.80/921,353.70 = 561,091.70/x - Step 3: Cross multiply
614,235.80x = 921,353.70 × 561,091.70 - Step 4: Simplify right side
614,235.80x = 516,963,913,834.29 - Step 5: Solve for x
x = 516,963,913,834.29/614,235.80 - Step 6: Final answer
x = 841,637.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.