Finding the Fourth Proportional to 1,120,350, 1,547,372.76 and 815,788.08
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Solution
The fourth proportional to 1,120,350, 1,547,372.76 and 815,788.08 is: 1,126,726.70
Step by Step Solution
- Step 1: Write the proportion equation
1,120,350 : 1,547,372.76 = 815,788.08 : x - Step 2: Convert to fraction form
1,120,350/1,547,372.76 = 815,788.08/x - Step 3: Cross multiply
1,120,350x = 1,547,372.76 × 815,788.08 - Step 4: Simplify right side
1,120,350x = 1,262,328,252,924.70 - Step 5: Solve for x
x = 1,262,328,252,924.70/1,120,350 - Step 6: Final answer
x = 1,126,726.70
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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.