Finding the Fourth Proportional to 909,779.60, 1,255,557.84 and 527,806.28
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Solution
The fourth proportional to 909,779.60, 1,255,557.84 and 527,806.28 is: 728,408.63
Step by Step Solution
- Step 1: Write the proportion equation
909,779.60 : 1,255,557.84 = 527,806.28 : x - Step 2: Convert to fraction form
909,779.60/1,255,557.84 = 527,806.28/x - Step 3: Cross multiply
909,779.60x = 1,255,557.84 × 527,806.28 - Step 4: Simplify right side
909,779.60x = 662,691,312,855.24 - Step 5: Solve for x
x = 662,691,312,855.24/909,779.60 - Step 6: Final answer
x = 728,408.63
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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.