Finding the Fourth Proportional to 630,302.14, 869,823.24 and 343,828.23
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Solution
The fourth proportional to 630,302.14, 869,823.24 and 343,828.23 is: 474,486.39
Step by Step Solution
- Step 1: Write the proportion equation
630,302.14 : 869,823.24 = 343,828.23 : x - Step 2: Convert to fraction form
630,302.14/869,823.24 = 343,828.23/x - Step 3: Cross multiply
630,302.14x = 869,823.24 × 343,828.23 - Step 4: Simplify right side
630,302.14x = 299,069,785,022.07 - Step 5: Solve for x
x = 299,069,785,022.07/630,302.14 - Step 6: Final answer
x = 474,486.39
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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.