Finding the Fourth Proportional to 1,312,746.19, 1,811,926.80 and 855,001.42
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Solution
The fourth proportional to 1,312,746.19, 1,811,926.80 and 855,001.42 is: 1,180,121.49
Step by Step Solution
- Step 1: Write the proportion equation
1,312,746.19 : 1,811,926.80 = 855,001.42 : x - Step 2: Convert to fraction form
1,312,746.19/1,811,926.80 = 855,001.42/x - Step 3: Cross multiply
1,312,746.19x = 1,811,926.80 × 855,001.42 - Step 4: Simplify right side
1,312,746.19x = 1,549,199,977,876.42 - Step 5: Solve for x
x = 1,549,199,977,876.42/1,312,746.19 - Step 6: Final answer
x = 1,180,121.49
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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.