Finding the Fourth Proportional to 630,295.76, 869,813.70 and 343,817.12
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Solution
The fourth proportional to 630,295.76, 869,813.70 and 343,817.12 is: 474,470.65
Step by Step Solution
- Step 1: Write the proportion equation
630,295.76 : 869,813.70 = 343,817.12 : x - Step 2: Convert to fraction form
630,295.76/869,813.70 = 343,817.12/x - Step 3: Cross multiply
630,295.76x = 869,813.70 × 343,817.12 - Step 4: Simplify right side
630,295.76x = 299,056,841,270.54 - Step 5: Solve for x
x = 299,056,841,270.54/630,295.76 - Step 6: Final answer
x = 474,470.65
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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.