Finding the Fourth Proportional to 752,657.84, 1,038,671.16 and 413,128.88
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Solution
The fourth proportional to 752,657.84, 1,038,671.16 and 413,128.88 is: 570,119.69
Step by Step Solution
- Step 1: Write the proportion equation
752,657.84 : 1,038,671.16 = 413,128.88 : x - Step 2: Convert to fraction form
752,657.84/1,038,671.16 = 413,128.88/x - Step 3: Cross multiply
752,657.84x = 1,038,671.16 × 413,128.88 - Step 4: Simplify right side
752,657.84x = 429,105,053,019.10 - Step 5: Solve for x
x = 429,105,053,019.10/752,657.84 - Step 6: Final answer
x = 570,119.69
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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.