Finding the Fourth Proportional to 709,937.14, 979,709.35 and 387,644.95
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Solution
The fourth proportional to 709,937.14, 979,709.35 and 387,644.95 is: 534,947.90
Step by Step Solution
- Step 1: Write the proportion equation
709,937.14 : 979,709.35 = 387,644.95 : x - Step 2: Convert to fraction form
709,937.14/979,709.35 = 387,644.95/x - Step 3: Cross multiply
709,937.14x = 979,709.35 × 387,644.95 - Step 4: Simplify right side
709,937.14x = 379,779,381,312.46 - Step 5: Solve for x
x = 379,779,381,312.46/709,937.14 - Step 6: Final answer
x = 534,947.90
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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.