Finding the Fourth Proportional to 630,288.76, 869,804.04 and 343,810.12
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Solution
The fourth proportional to 630,288.76, 869,804.04 and 343,810.12 is: 474,460.99
Step by Step Solution
- Step 1: Write the proportion equation
630,288.76 : 869,804.04 = 343,810.12 : x - Step 2: Convert to fraction form
630,288.76/869,804.04 = 343,810.12/x - Step 3: Cross multiply
630,288.76x = 869,804.04 × 343,810.12 - Step 4: Simplify right side
630,288.76x = 299,047,431,368.89 - Step 5: Solve for x
x = 299,047,431,368.89/630,288.76 - Step 6: Final answer
x = 474,460.99
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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.