Finding the Fourth Proportional to 483,175.80, 724,763.70 and 430,031.70
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Solution
The fourth proportional to 483,175.80, 724,763.70 and 430,031.70 is: 645,047.55
Step by Step Solution
- Step 1: Write the proportion equation
483,175.80 : 724,763.70 = 430,031.70 : x - Step 2: Convert to fraction form
483,175.80/724,763.70 = 430,031.70/x - Step 3: Cross multiply
483,175.80x = 724,763.70 × 430,031.70 - Step 4: Simplify right side
483,175.80x = 311,671,366,009.29 - Step 5: Solve for x
x = 311,671,366,009.29/483,175.80 - Step 6: Final answer
x = 645,047.55
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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.