Finding the Fourth Proportional to 558,425.07, 768,681.09 and 486,681.75
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Solution
The fourth proportional to 558,425.07, 768,681.09 and 486,681.75 is: 669,925.26
Step by Step Solution
- Step 1: Write the proportion equation
558,425.07 : 768,681.09 = 486,681.75 : x - Step 2: Convert to fraction form
558,425.07/768,681.09 = 486,681.75/x - Step 3: Cross multiply
558,425.07x = 768,681.09 × 486,681.75 - Step 4: Simplify right side
558,425.07x = 374,103,058,073.11 - Step 5: Solve for x
x = 374,103,058,073.11/558,425.07 - Step 6: Final answer
x = 669,925.26
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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.