Finding the Fourth Proportional to 752,420.70, 1,038,339.23 and 408,256.65
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Solution
The fourth proportional to 752,420.70, 1,038,339.23 and 408,256.65 is: 563,393.45
Step by Step Solution
- Step 1: Write the proportion equation
752,420.70 : 1,038,339.23 = 408,256.65 : x - Step 2: Convert to fraction form
752,420.70/1,038,339.23 = 408,256.65/x - Step 3: Cross multiply
752,420.70x = 1,038,339.23 × 408,256.65 - Step 4: Simplify right side
752,420.70x = 423,908,893,562.10 - Step 5: Solve for x
x = 423,908,893,562.10/752,420.70 - Step 6: Final answer
x = 563,393.45
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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.