Finding the Fourth Proportional to 406,607.42, 561,132.71 and 245,430.99
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Solution
The fourth proportional to 406,607.42, 561,132.71 and 245,430.99 is: 338,703.50
Step by Step Solution
- Step 1: Write the proportion equation
406,607.42 : 561,132.71 = 245,430.99 : x - Step 2: Convert to fraction form
406,607.42/561,132.71 = 245,430.99/x - Step 3: Cross multiply
406,607.42x = 561,132.71 × 245,430.99 - Step 4: Simplify right side
406,607.42x = 137,719,356,032.26 - Step 5: Solve for x
x = 137,719,356,032.26/406,607.42 - Step 6: Final answer
x = 338,703.50
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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.