Finding the Fourth Proportional to 651,664.70, 977,497.05 and 402,487.10
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Solution
The fourth proportional to 651,664.70, 977,497.05 and 402,487.10 is: 603,730.65
Step by Step Solution
- Step 1: Write the proportion equation
651,664.70 : 977,497.05 = 402,487.10 : x - Step 2: Convert to fraction form
651,664.70/977,497.05 = 402,487.10/x - Step 3: Cross multiply
651,664.70x = 977,497.05 × 402,487.10 - Step 4: Simplify right side
651,664.70x = 393,429,952,913.06 - Step 5: Solve for x
x = 393,429,952,913.06/651,664.70 - Step 6: Final answer
x = 603,730.65
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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.