Finding the Fourth Proportional to 630,468.68, 870,029.86 and 343,988.68
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Solution
The fourth proportional to 630,468.68, 870,029.86 and 343,988.68 is: 474,695.15
Step by Step Solution
- Step 1: Write the proportion equation
630,468.68 : 870,029.86 = 343,988.68 : x - Step 2: Convert to fraction form
630,468.68/870,029.86 = 343,988.68/x - Step 3: Cross multiply
630,468.68x = 870,029.86 × 343,988.68 - Step 4: Simplify right side
630,468.68x = 299,280,423,101.99 - Step 5: Solve for x
x = 299,280,423,101.99/630,468.68 - Step 6: Final answer
x = 474,695.15
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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.