Finding the Fourth Proportional to 742,507.32, 1,024,660.53 and 402,975.57
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Solution
The fourth proportional to 742,507.32, 1,024,660.53 and 402,975.57 is: 556,106.52
Step by Step Solution
- Step 1: Write the proportion equation
742,507.32 : 1,024,660.53 = 402,975.57 : x - Step 2: Convert to fraction form
742,507.32/1,024,660.53 = 402,975.57/x - Step 3: Cross multiply
742,507.32x = 1,024,660.53 × 402,975.57 - Step 4: Simplify right side
742,507.32x = 412,913,163,464.57 - Step 5: Solve for x
x = 412,913,163,464.57/742,507.32 - Step 6: Final answer
x = 556,106.52
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1.5x scale
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.