Finding the Fourth Proportional to 651,639.70, 977,459.55 and 402,807.70
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Solution
The fourth proportional to 651,639.70, 977,459.55 and 402,807.70 is: 604,211.55
Step by Step Solution
- Step 1: Write the proportion equation
651,639.70 : 977,459.55 = 402,807.70 : x - Step 2: Convert to fraction form
651,639.70/977,459.55 = 402,807.70/x - Step 3: Cross multiply
651,639.70x = 977,459.55 × 402,807.70 - Step 4: Simplify right side
651,639.70x = 393,728,233,178.54 - Step 5: Solve for x
x = 393,728,233,178.54/651,639.70 - Step 6: Final answer
x = 604,211.55
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.