Finding the Fourth Proportional to 656,801.30, 906,412.70 and 414,995.65
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Solution
The fourth proportional to 656,801.30, 906,412.70 and 414,995.65 is: 572,710.99
Step by Step Solution
- Step 1: Write the proportion equation
656,801.30 : 906,412.70 = 414,995.65 : x - Step 2: Convert to fraction form
656,801.30/906,412.70 = 414,995.65/x - Step 3: Cross multiply
656,801.30x = 906,412.70 × 414,995.65 - Step 4: Simplify right side
656,801.30x = 376,157,326,376.21 - Step 5: Solve for x
x = 376,157,326,376.21/656,801.30 - Step 6: Final answer
x = 572,710.99
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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.