Finding the Fourth Proportional to 1,539,395.32, 2,124,368.62 and 860,331.80
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Solution
The fourth proportional to 1,539,395.32, 2,124,368.62 and 860,331.80 is: 1,187,259.60
Step by Step Solution
- Step 1: Write the proportion equation
1,539,395.32 : 2,124,368.62 = 860,331.80 : x - Step 2: Convert to fraction form
1,539,395.32/2,124,368.62 = 860,331.80/x - Step 3: Cross multiply
1,539,395.32x = 2,124,368.62 × 860,331.80 - Step 4: Simplify right side
1,539,395.32x = 1,827,661,878,708.12 - Step 5: Solve for x
x = 1,827,661,878,708.12/1,539,395.32 - Step 6: Final answer
x = 1,187,259.60
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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.