Finding the Fourth Proportional to 860,403.36, 1,187,385.63 and 473,248.72
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Solution
The fourth proportional to 860,403.36, 1,187,385.63 and 473,248.72 is: 653,099.18
Step by Step Solution
- Step 1: Write the proportion equation
860,403.36 : 1,187,385.63 = 473,248.72 : x - Step 2: Convert to fraction form
860,403.36/1,187,385.63 = 473,248.72/x - Step 3: Cross multiply
860,403.36x = 1,187,385.63 × 473,248.72 - Step 4: Simplify right side
860,403.36x = 561,928,730,727.02 - Step 5: Solve for x
x = 561,928,730,727.02/860,403.36 - Step 6: Final answer
x = 653,099.18
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1.5x scale
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.