Finding the Fourth Proportional to 664,386.20, 996,579.30 and 464,931.80
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Solution
The fourth proportional to 664,386.20, 996,579.30 and 464,931.80 is: 697,397.70
Step by Step Solution
- Step 1: Write the proportion equation
664,386.20 : 996,579.30 = 464,931.80 : x - Step 2: Convert to fraction form
664,386.20/996,579.30 = 464,931.80/x - Step 3: Cross multiply
664,386.20x = 996,579.30 × 464,931.80 - Step 4: Simplify right side
664,386.20x = 463,341,407,791.74 - Step 5: Solve for x
x = 463,341,407,791.74/664,386.20 - Step 6: Final answer
x = 697,397.70
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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.