Finding the Fourth Proportional to 432,698.79, 597,121.06 and 239,119.55
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Solution
The fourth proportional to 432,698.79, 597,121.06 and 239,119.55 is: 329,983.17
Step by Step Solution
- Step 1: Write the proportion equation
432,698.79 : 597,121.06 = 239,119.55 : x - Step 2: Convert to fraction form
432,698.79/597,121.06 = 239,119.55/x - Step 3: Cross multiply
432,698.79x = 597,121.06 × 239,119.55 - Step 4: Simplify right side
432,698.79x = 142,783,317,967.13 - Step 5: Solve for x
x = 142,783,317,967.13/432,698.79 - Step 6: Final answer
x = 329,983.17
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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.