Finding the Fourth Proportional to 935,811.36, 1,291,423.55 and 506,091.49
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Solution
The fourth proportional to 935,811.36, 1,291,423.55 and 506,091.49 is: 698,408.35
Step by Step Solution
- Step 1: Write the proportion equation
935,811.36 : 1,291,423.55 = 506,091.49 : x - Step 2: Convert to fraction form
935,811.36/1,291,423.55 = 506,091.49/x - Step 3: Cross multiply
935,811.36x = 1,291,423.55 × 506,091.49 - Step 4: Simplify right side
935,811.36x = 653,578,468,640.59 - Step 5: Solve for x
x = 653,578,468,640.59/935,811.36 - Step 6: Final answer
x = 698,408.35
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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.