Finding the Fourth Proportional to 2,878,565.19, 3,972,581.75 and 1,571,938.74
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Solution
The fourth proportional to 2,878,565.19, 3,972,581.75 and 1,571,938.74 is: 2,169,363.81
Step by Step Solution
- Step 1: Write the proportion equation
2,878,565.19 : 3,972,581.75 = 1,571,938.74 : x - Step 2: Convert to fraction form
2,878,565.19/3,972,581.75 = 1,571,938.74/x - Step 3: Cross multiply
2,878,565.19x = 3,972,581.75 × 1,571,938.74 - Step 4: Simplify right side
2,878,565.19x = 6,244,655,142,782.30 - Step 5: Solve for x
x = 6,244,655,142,782.30/2,878,565.19 - Step 6: Final answer
x = 2,169,363.81
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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.