Finding the Fourth Proportional to 1,317,206.74, 1,817,079.58 and 881,642.31
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Solution
The fourth proportional to 1,317,206.74, 1,817,079.58 and 881,642.31 is: 1,216,220.80
Step by Step Solution
- Step 1: Write the proportion equation
1,317,206.74 : 1,817,079.58 = 881,642.31 : x - Step 2: Convert to fraction form
1,317,206.74/1,817,079.58 = 881,642.31/x - Step 3: Cross multiply
1,317,206.74x = 1,817,079.58 × 881,642.31 - Step 4: Simplify right side
1,317,206.74x = 1,602,014,238,365.03 - Step 5: Solve for x
x = 1,602,014,238,365.03/1,317,206.74 - Step 6: Final answer
x = 1,216,220.80
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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.