Finding the Fourth Proportional to 689,324.08, 951,352.68 and 387,518.08
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Solution
The fourth proportional to 689,324.08, 951,352.68 and 387,518.08 is: 534,822.99
Step by Step Solution
- Step 1: Write the proportion equation
689,324.08 : 951,352.68 = 387,518.08 : x - Step 2: Convert to fraction form
689,324.08/951,352.68 = 387,518.08/x - Step 3: Cross multiply
689,324.08x = 951,352.68 × 387,518.08 - Step 4: Simplify right side
689,324.08x = 368,666,363,956.45 - Step 5: Solve for x
x = 368,666,363,956.45/689,324.08 - Step 6: Final answer
x = 534,822.99
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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.