Finding the Fourth Proportional to 752,385.30, 1,038,291.62 and 430,102.58
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Solution
The fourth proportional to 752,385.30, 1,038,291.62 and 430,102.58 is: 593,541.51
Step by Step Solution
- Step 1: Write the proportion equation
752,385.30 : 1,038,291.62 = 430,102.58 : x - Step 2: Convert to fraction form
752,385.30/1,038,291.62 = 430,102.58/x - Step 3: Cross multiply
752,385.30x = 1,038,291.62 × 430,102.58 - Step 4: Simplify right side
752,385.30x = 446,571,904,554.38 - Step 5: Solve for x
x = 446,571,904,554.38/752,385.30 - Step 6: Final answer
x = 593,541.51
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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.