Finding the Fourth Proportional to 1,423,454.24, 1,964,391.36 and 778,930.76
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Solution
The fourth proportional to 1,423,454.24, 1,964,391.36 and 778,930.76 is: 1,074,937.86
Step by Step Solution
- Step 1: Write the proportion equation
1,423,454.24 : 1,964,391.36 = 778,930.76 : x - Step 2: Convert to fraction form
1,423,454.24/1,964,391.36 = 778,930.76/x - Step 3: Cross multiply
1,423,454.24x = 1,964,391.36 × 778,930.76 - Step 4: Simplify right side
1,423,454.24x = 1,530,124,854,982.23 - Step 5: Solve for x
x = 1,530,124,854,982.23/1,423,454.24 - Step 6: Final answer
x = 1,074,937.86
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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.