Finding the Fourth Proportional to 1,355,277.23, 1,869,968.93 and 811,206.30
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Solution
The fourth proportional to 1,355,277.23, 1,869,968.93 and 811,206.30 is: 1,119,276.96
Step by Step Solution
- Step 1: Write the proportion equation
1,355,277.23 : 1,869,968.93 = 811,206.30 : x - Step 2: Convert to fraction form
1,355,277.23/1,869,968.93 = 811,206.30/x - Step 3: Cross multiply
1,355,277.23x = 1,869,968.93 × 811,206.30 - Step 4: Simplify right side
1,355,277.23x = 1,516,930,572,764.23 - Step 5: Solve for x
x = 1,516,930,572,764.23/1,355,277.23 - Step 6: Final answer
x = 1,119,276.96
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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.