Finding the Fourth Proportional to 715,344.08, 987,260.65 and 429,021.68
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Solution
The fourth proportional to 715,344.08, 987,260.65 and 429,021.68 is: 592,101.38
Step by Step Solution
- Step 1: Write the proportion equation
715,344.08 : 987,260.65 = 429,021.68 : x - Step 2: Convert to fraction form
715,344.08/987,260.65 = 429,021.68/x - Step 3: Cross multiply
715,344.08x = 987,260.65 × 429,021.68 - Step 4: Simplify right side
715,344.08x = 423,556,216,652.04 - Step 5: Solve for x
x = 423,556,216,652.04/715,344.08 - Step 6: Final answer
x = 592,101.38
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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.