Finding the Fourth Proportional to 1,578,145.70, 2,365,663.35 and 778,772.90
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Solution
The fourth proportional to 1,578,145.70, 2,365,663.35 and 778,772.90 is: 1,167,391.90
Step by Step Solution
- Step 1: Write the proportion equation
1,578,145.70 : 2,365,663.35 = 778,772.90 : x - Step 2: Convert to fraction form
1,578,145.70/2,365,663.35 = 778,772.90/x - Step 3: Cross multiply
1,578,145.70x = 2,365,663.35 × 778,772.90 - Step 4: Simplify right side
1,578,145.70x = 1,842,314,507,503.22 - Step 5: Solve for x
x = 1,842,314,507,503.22/1,578,145.70 - Step 6: Final answer
x = 1,167,391.90
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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.