Finding the Fourth Proportional to 1,539,356.24, 2,124,377.20 and 860,292.72
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Solution
The fourth proportional to 1,539,356.24, 2,124,377.20 and 860,292.72 is: 1,187,240.61
Step by Step Solution
- Step 1: Write the proportion equation
1,539,356.24 : 2,124,377.20 = 860,292.72 : x - Step 2: Convert to fraction form
1,539,356.24/2,124,377.20 = 860,292.72/x - Step 3: Cross multiply
1,539,356.24x = 2,124,377.20 × 860,292.72 - Step 4: Simplify right side
1,539,356.24x = 1,827,586,239,693.98 - Step 5: Solve for x
x = 1,827,586,239,693.98/1,539,356.24 - Step 6: Final answer
x = 1,187,240.61
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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.