Finding the Fourth Proportional to 570,631.84, 787,471.76 and 315,982.96
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Solution
The fourth proportional to 570,631.84, 787,471.76 and 315,982.96 is: 436,056.39
Step by Step Solution
- Step 1: Write the proportion equation
570,631.84 : 787,471.76 = 315,982.96 : x - Step 2: Convert to fraction form
570,631.84/787,471.76 = 315,982.96/x - Step 3: Cross multiply
570,631.84x = 787,471.76 × 315,982.96 - Step 4: Simplify right side
570,631.84x = 248,827,657,641.21 - Step 5: Solve for x
x = 248,827,657,641.21/570,631.84 - Step 6: Final answer
x = 436,056.39
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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.