Finding the Fourth Proportional to 688,542.20, 1,032,813.30 and 475,965.80
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Solution
The fourth proportional to 688,542.20, 1,032,813.30 and 475,965.80 is: 713,948.70
Step by Step Solution
- Step 1: Write the proportion equation
688,542.20 : 1,032,813.30 = 475,965.80 : x - Step 2: Convert to fraction form
688,542.20/1,032,813.30 = 475,965.80/x - Step 3: Cross multiply
688,542.20x = 1,032,813.30 × 475,965.80 - Step 4: Simplify right side
688,542.20x = 491,583,808,585.14 - Step 5: Solve for x
x = 491,583,808,585.14/688,542.20 - Step 6: Final answer
x = 713,948.70
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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.