Finding the Fourth Proportional to 684,364.79, 944,429.53 and 378,461.75
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Solution
The fourth proportional to 684,364.79, 944,429.53 and 378,461.75 is: 522,280.60
Step by Step Solution
- Step 1: Write the proportion equation
684,364.79 : 944,429.53 = 378,461.75 : x - Step 2: Convert to fraction form
684,364.79/944,429.53 = 378,461.75/x - Step 3: Cross multiply
684,364.79x = 944,429.53 × 378,461.75 - Step 4: Simplify right side
684,364.79x = 357,430,452,675.48 - Step 5: Solve for x
x = 357,430,452,675.48/684,364.79 - Step 6: Final answer
x = 522,280.60
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1.5x scale
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.