Finding the Fourth Proportional to 4,312,370.40, 6,466,222.80 and 1,788,280.80
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Solution
The fourth proportional to 4,312,370.40, 6,466,222.80 and 1,788,280.80 is: 2,681,453.82
Step by Step Solution
- Step 1: Write the proportion equation
4,312,370.40 : 6,466,222.80 = 1,788,280.80 : x - Step 2: Convert to fraction form
4,312,370.40/6,466,222.80 = 1,788,280.80/x - Step 3: Cross multiply
4,312,370.40x = 6,466,222.80 × 1,788,280.80 - Step 4: Simplify right side
4,312,370.40x = 11,563,422,081,762.24 - Step 5: Solve for x
x = 11,563,422,081,762.24/4,312,370.40 - Step 6: Final answer
x = 2,681,453.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.