Finding the Fourth Proportional to 688,569.12, 1,032,430.86 and 239,096.88
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Solution
The fourth proportional to 688,569.12, 1,032,430.86 and 239,096.88 is: 358,498.50
Step by Step Solution
- Step 1: Write the proportion equation
688,569.12 : 1,032,430.86 = 239,096.88 : x - Step 2: Convert to fraction form
688,569.12/1,032,430.86 = 239,096.88/x - Step 3: Cross multiply
688,569.12x = 1,032,430.86 × 239,096.88 - Step 4: Simplify right side
688,569.12x = 246,850,997,441.72 - Step 5: Solve for x
x = 246,850,997,441.72/688,569.12 - Step 6: Final answer
x = 358,498.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.