Finding the Fourth Proportional to 614,315.70, 921,473.55 and 579,323.70
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Solution
The fourth proportional to 614,315.70, 921,473.55 and 579,323.70 is: 868,985.55
Step by Step Solution
- Step 1: Write the proportion equation
614,315.70 : 921,473.55 = 579,323.70 : x - Step 2: Convert to fraction form
614,315.70/921,473.55 = 579,323.70/x - Step 3: Cross multiply
614,315.70x = 921,473.55 × 579,323.70 - Step 4: Simplify right side
614,315.70x = 533,831,466,438.14 - Step 5: Solve for x
x = 533,831,466,438.14/614,315.70 - Step 6: Final answer
x = 868,985.55
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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.