Finding the Fourth Proportional to 498,776.74, 688,307.62 and 272,417.38
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Solution
The fourth proportional to 498,776.74, 688,307.62 and 272,417.38 is: 375,933.65
Step by Step Solution
- Step 1: Write the proportion equation
498,776.74 : 688,307.62 = 272,417.38 : x - Step 2: Convert to fraction form
498,776.74/688,307.62 = 272,417.38/x - Step 3: Cross multiply
498,776.74x = 688,307.62 × 272,417.38 - Step 4: Simplify right side
498,776.74x = 187,506,958,474.44 - Step 5: Solve for x
x = 187,506,958,474.44/498,776.74 - Step 6: Final answer
x = 375,933.65
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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.