Finding the Fourth Proportional to 689,854.60, 952,113.18 and 403,319.80
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Solution
The fourth proportional to 689,854.60, 952,113.18 and 403,319.80 is: 556,647.88
Step by Step Solution
- Step 1: Write the proportion equation
689,854.60 : 952,113.18 = 403,319.80 : x - Step 2: Convert to fraction form
689,854.60/952,113.18 = 403,319.80/x - Step 3: Cross multiply
689,854.60x = 952,113.18 × 403,319.80 - Step 4: Simplify right side
689,854.60x = 384,006,097,334.96 - Step 5: Solve for x
x = 384,006,097,334.96/689,854.60 - Step 6: Final answer
x = 556,647.88
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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.