Finding the Fourth Proportional to 2,038,889.12, 2,813,748 and 1,121,193.48
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Solution
The fourth proportional to 2,038,889.12, 2,813,748 and 1,121,193.48 is: 1,547,291.55
Step by Step Solution
- Step 1: Write the proportion equation
2,038,889.12 : 2,813,748 = 1,121,193.48 : x - Step 2: Convert to fraction form
2,038,889.12/2,813,748 = 1,121,193.48/x - Step 3: Cross multiply
2,038,889.12x = 2,813,748 × 1,121,193.48 - Step 4: Simplify right side
2,038,889.12x = 3,154,755,911,963.04 - Step 5: Solve for x
x = 3,154,755,911,963.04/2,038,889.12 - Step 6: Final answer
x = 1,547,291.55
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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.