Finding the Fourth Proportional to 630,924.37, 870,642.68 and 344,389.09
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Solution
The fourth proportional to 630,924.37, 870,642.68 and 344,389.09 is: 475,238.96
Step by Step Solution
- Step 1: Write the proportion equation
630,924.37 : 870,642.68 = 344,389.09 : x - Step 2: Convert to fraction form
630,924.37/870,642.68 = 344,389.09/x - Step 3: Cross multiply
630,924.37x = 870,642.68 × 344,389.09 - Step 4: Simplify right side
630,924.37x = 299,839,840,280.36 - Step 5: Solve for x
x = 299,839,840,280.36/630,924.37 - Step 6: Final answer
x = 475,238.96
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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.