Finding the Fourth Proportional to 1,564,257.81, 2,157,560.64 and 1,435,610.96
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Solution
The fourth proportional to 1,564,257.81, 2,157,560.64 and 1,435,610.96 is: 1,980,119.70
Step by Step Solution
- Step 1: Write the proportion equation
1,564,257.81 : 2,157,560.64 = 1,435,610.96 : x - Step 2: Convert to fraction form
1,564,257.81/2,157,560.64 = 1,435,610.96/x - Step 3: Cross multiply
1,564,257.81x = 2,157,560.64 × 1,435,610.96 - Step 4: Simplify right side
1,564,257.81x = 3,097,417,701,648.62 - Step 5: Solve for x
x = 3,097,417,701,648.62/1,564,257.81 - Step 6: Final answer
x = 1,980,119.70
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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.