Finding the Fourth Proportional to 630,424.62, 869,985.09 and 343,944.90
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Solution
The fourth proportional to 630,424.62, 869,985.09 and 343,944.90 is: 474,643.48
Step by Step Solution
- Step 1: Write the proportion equation
630,424.62 : 869,985.09 = 343,944.90 : x - Step 2: Convert to fraction form
630,424.62/869,985.09 = 343,944.90/x - Step 3: Cross multiply
630,424.62x = 869,985.09 × 343,944.90 - Step 4: Simplify right side
630,424.62x = 299,226,934,781.54 - Step 5: Solve for x
x = 299,226,934,781.54/630,424.62 - Step 6: Final answer
x = 474,643.48
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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.