Finding the Fourth Proportional to 570,585.84, 787,408.44 and 315,936.96
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Solution
The fourth proportional to 570,585.84, 787,408.44 and 315,936.96 is: 435,992.99
Step by Step Solution
- Step 1: Write the proportion equation
570,585.84 : 787,408.44 = 315,936.96 : x - Step 2: Convert to fraction form
570,585.84/787,408.44 = 315,936.96/x - Step 3: Cross multiply
570,585.84x = 787,408.44 × 315,936.96 - Step 4: Simplify right side
570,585.84x = 248,771,428,811.94 - Step 5: Solve for x
x = 248,771,428,811.94/570,585.84 - Step 6: Final answer
x = 435,992.99
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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.