Finding the Fourth Proportional to 640,552.75, 883,962.99 and 350,165.59
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Solution
The fourth proportional to 640,552.75, 883,962.99 and 350,165.59 is: 483,228.62
Step by Step Solution
- Step 1: Write the proportion equation
640,552.75 : 883,962.99 = 350,165.59 : x - Step 2: Convert to fraction form
640,552.75/883,962.99 = 350,165.59/x - Step 3: Cross multiply
640,552.75x = 883,962.99 × 350,165.59 - Step 4: Simplify right side
640,552.75x = 309,533,421,931.51 - Step 5: Solve for x
x = 309,533,421,931.51/640,552.75 - Step 6: Final answer
x = 483,228.62
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1.5x scale
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.