Finding the Fourth Proportional to 688,246.34, 949,931.75 and 382,427.79
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Solution
The fourth proportional to 688,246.34, 949,931.75 and 382,427.79 is: 527,834.70
Step by Step Solution
- Step 1: Write the proportion equation
688,246.34 : 949,931.75 = 382,427.79 : x - Step 2: Convert to fraction form
688,246.34/949,931.75 = 382,427.79/x - Step 3: Cross multiply
688,246.34x = 949,931.75 × 382,427.79 - Step 4: Simplify right side
688,246.34x = 363,280,297,891.19 - Step 5: Solve for x
x = 363,280,297,891.19/688,246.34 - Step 6: Final answer
x = 527,834.70
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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.