Finding the Fourth Proportional to 688,631.36, 950,298.28 and 382,704.08
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Solution
The fourth proportional to 688,631.36, 950,298.28 and 382,704.08 is: 528,124.40
Step by Step Solution
- Step 1: Write the proportion equation
688,631.36 : 950,298.28 = 382,704.08 : x - Step 2: Convert to fraction form
688,631.36/950,298.28 = 382,704.08/x - Step 3: Cross multiply
688,631.36x = 950,298.28 × 382,704.08 - Step 4: Simplify right side
688,631.36x = 363,683,023,264.73 - Step 5: Solve for x
x = 363,683,023,264.73/688,631.36 - Step 6: Final answer
x = 528,124.40
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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.