Finding the Fourth Proportional to 687,531.60, 948,774.24 and 377,434.08
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Solution
The fourth proportional to 687,531.60, 948,774.24 and 377,434.08 is: 520,848.40
Step by Step Solution
- Step 1: Write the proportion equation
687,531.60 : 948,774.24 = 377,434.08 : x - Step 2: Convert to fraction form
687,531.60/948,774.24 = 377,434.08/x - Step 3: Cross multiply
687,531.60x = 948,774.24 × 377,434.08 - Step 4: Simplify right side
687,531.60x = 358,099,732,402.10 - Step 5: Solve for x
x = 358,099,732,402.10/687,531.60 - Step 6: Final answer
x = 520,848.40
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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.