Finding the Fourth Proportional to 570,625.84, 787,463.61 and 315,977.05
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Solution
The fourth proportional to 570,625.84, 787,463.61 and 315,977.05 is: 436,048.30
Step by Step Solution
- Step 1: Write the proportion equation
570,625.84 : 787,463.61 = 315,977.05 : x - Step 2: Convert to fraction form
570,625.84/787,463.61 = 315,977.05/x - Step 3: Cross multiply
570,625.84x = 787,463.61 × 315,977.05 - Step 4: Simplify right side
570,625.84x = 248,820,428,470.15 - Step 5: Solve for x
x = 248,820,428,470.15/570,625.84 - Step 6: Final answer
x = 436,048.30
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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.