Finding the Fourth Proportional to 679,731.76, 938,011.12 and 373,808.14
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Solution
The fourth proportional to 679,731.76, 938,011.12 and 373,808.14 is: 515,844.94
Step by Step Solution
- Step 1: Write the proportion equation
679,731.76 : 938,011.12 = 373,808.14 : x - Step 2: Convert to fraction form
679,731.76/938,011.12 = 373,808.14/x - Step 3: Cross multiply
679,731.76x = 938,011.12 × 373,808.14 - Step 4: Simplify right side
679,731.76x = 350,636,191,425.13 - Step 5: Solve for x
x = 350,636,191,425.13/679,731.76 - Step 6: Final answer
x = 515,844.94
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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.