Finding the Fourth Proportional to 557,698.84, 769,622.36 and 316,027.59
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Solution
The fourth proportional to 557,698.84, 769,622.36 and 316,027.59 is: 436,116.92
Step by Step Solution
- Step 1: Write the proportion equation
557,698.84 : 769,622.36 = 316,027.59 : x - Step 2: Convert to fraction form
557,698.84/769,622.36 = 316,027.59/x - Step 3: Cross multiply
557,698.84x = 769,622.36 × 316,027.59 - Step 4: Simplify right side
557,698.84x = 243,221,901,281.47 - Step 5: Solve for x
x = 243,221,901,281.47/557,698.84 - Step 6: Final answer
x = 436,116.92
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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.