Finding the Fourth Proportional to 692,971.68, 956,312.64 and 387,074.88
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Solution
The fourth proportional to 692,971.68, 956,312.64 and 387,074.88 is: 534,169.88
Step by Step Solution
- Step 1: Write the proportion equation
692,971.68 : 956,312.64 = 387,074.88 : x - Step 2: Convert to fraction form
692,971.68/956,312.64 = 387,074.88/x - Step 3: Cross multiply
692,971.68x = 956,312.64 × 387,074.88 - Step 4: Simplify right side
692,971.68x = 370,164,600,370.48 - Step 5: Solve for x
x = 370,164,600,370.48/692,971.68 - Step 6: Final answer
x = 534,169.88
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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.