Finding the Fourth Proportional to 579,803.19, 869,704.71 and 340,281.55
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Solution
The fourth proportional to 579,803.19, 869,704.71 and 340,281.55 is: 510,422.28
Step by Step Solution
- Step 1: Write the proportion equation
579,803.19 : 869,704.71 = 340,281.55 : x - Step 2: Convert to fraction form
579,803.19/869,704.71 = 340,281.55/x - Step 3: Cross multiply
579,803.19x = 869,704.71 × 340,281.55 - Step 4: Simplify right side
579,803.19x = 295,944,466,761.10 - Step 5: Solve for x
x = 295,944,466,761.10/579,803.19 - Step 6: Final answer
x = 510,422.28
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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.