Finding the Fourth Proportional to 983,507.76, 1,357,128.36 and 553,776.84
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Solution
The fourth proportional to 983,507.76, 1,357,128.36 and 553,776.84 is: 764,148.78
Step by Step Solution
- Step 1: Write the proportion equation
983,507.76 : 1,357,128.36 = 553,776.84 : x - Step 2: Convert to fraction form
983,507.76/1,357,128.36 = 553,776.84/x - Step 3: Cross multiply
983,507.76x = 1,357,128.36 × 553,776.84 - Step 4: Simplify right side
983,507.76x = 751,546,254,675.18 - Step 5: Solve for x
x = 751,546,254,675.18/983,507.76 - Step 6: Final answer
x = 764,148.78
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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.