Finding the Fourth Proportional to 459,085.80, 688,628.70 and 249,133.80
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Solution
The fourth proportional to 459,085.80, 688,628.70 and 249,133.80 is: 373,700.70
Step by Step Solution
- Step 1: Write the proportion equation
459,085.80 : 688,628.70 = 249,133.80 : x - Step 2: Convert to fraction form
459,085.80/688,628.70 = 249,133.80/x - Step 3: Cross multiply
459,085.80x = 688,628.70 × 249,133.80 - Step 4: Simplify right side
459,085.80x = 171,560,684,820.06 - Step 5: Solve for x
x = 171,560,684,820.06/459,085.80 - Step 6: Final answer
x = 373,700.70
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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.