Finding the Fourth Proportional to 657,646.70, 921,638.50 and 657,646.70
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Solution
The fourth proportional to 657,646.70, 921,638.50 and 657,646.70 is: 921,638.50
Step by Step Solution
- Step 1: Write the proportion equation
657,646.70 : 921,638.50 = 657,646.70 : x - Step 2: Convert to fraction form
657,646.70/921,638.50 = 657,646.70/x - Step 3: Cross multiply
657,646.70x = 921,638.50 × 657,646.70 - Step 4: Simplify right side
657,646.70x = 606,112,518,117.95 - Step 5: Solve for x
x = 606,112,518,117.95/657,646.70 - Step 6: Final answer
x = 921,638.50
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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.