Finding the Fourth Proportional to 692,882.19, 955,968.30 and 402,437.70
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Solution
The fourth proportional to 692,882.19, 955,968.30 and 402,437.70 is: 555,242.56
Step by Step Solution
- Step 1: Write the proportion equation
692,882.19 : 955,968.30 = 402,437.70 : x - Step 2: Convert to fraction form
692,882.19/955,968.30 = 402,437.70/x - Step 3: Cross multiply
692,882.19x = 955,968.30 × 402,437.70 - Step 4: Simplify right side
692,882.19x = 384,717,683,924.91 - Step 5: Solve for x
x = 384,717,683,924.91/692,882.19 - Step 6: Final answer
x = 555,242.56
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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.