Finding the Fourth Proportional to 630,240.14, 870,157.28 and 484,787.63
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Solution
The fourth proportional to 630,240.14, 870,157.28 and 484,787.63 is: 669,334.53
Step by Step Solution
- Step 1: Write the proportion equation
630,240.14 : 870,157.28 = 484,787.63 : x - Step 2: Convert to fraction form
630,240.14/870,157.28 = 484,787.63/x - Step 3: Cross multiply
630,240.14x = 870,157.28 × 484,787.63 - Step 4: Simplify right side
630,240.14x = 421,841,485,498.45 - Step 5: Solve for x
x = 421,841,485,498.45/630,240.14 - Step 6: Final answer
x = 669,334.53
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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.