Finding the Fourth Proportional to 2,853,617.68, 3,937,991.43 and 1,564,430.41
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Solution
The fourth proportional to 2,853,617.68, 3,937,991.43 and 1,564,430.41 is: 2,158,913.43
Step by Step Solution
- Step 1: Write the proportion equation
2,853,617.68 : 3,937,991.43 = 1,564,430.41 : x - Step 2: Convert to fraction form
2,853,617.68/3,937,991.43 = 1,564,430.41/x - Step 3: Cross multiply
2,853,617.68x = 3,937,991.43 × 1,564,430.41 - Step 4: Simplify right side
2,853,617.68x = 6,160,713,547,411.39 - Step 5: Solve for x
x = 6,160,713,547,411.39/2,853,617.68 - Step 6: Final answer
x = 2,158,913.43
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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.