Finding the Fourth Proportional to 1,989,932.74, 2,985,484.74 and 642,070.06
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Solution
The fourth proportional to 1,989,932.74, 2,985,484.74 and 642,070.06 is: 963,294.05
Step by Step Solution
- Step 1: Write the proportion equation
1,989,932.74 : 2,985,484.74 = 642,070.06 : x - Step 2: Convert to fraction form
1,989,932.74/2,985,484.74 = 642,070.06/x - Step 3: Cross multiply
1,989,932.74x = 2,985,484.74 × 642,070.06 - Step 4: Simplify right side
1,989,932.74x = 1,916,890,356,269.41 - Step 5: Solve for x
x = 1,916,890,356,269.41/1,989,932.74 - Step 6: Final answer
x = 963,294.05
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.