Finding the Fourth Proportional to 630,403.08, 869,952.12 and 358,471.02
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Solution
The fourth proportional to 630,403.08, 869,952.12 and 358,471.02 is: 494,687.66
Step by Step Solution
- Step 1: Write the proportion equation
630,403.08 : 869,952.12 = 358,471.02 : x - Step 2: Convert to fraction form
630,403.08/869,952.12 = 358,471.02/x - Step 3: Cross multiply
630,403.08x = 869,952.12 × 358,471.02 - Step 4: Simplify right side
630,403.08x = 311,852,623,807.56 - Step 5: Solve for x
x = 311,852,623,807.56/630,403.08 - Step 6: Final answer
x = 494,687.66
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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.