Finding the Fourth Proportional to 689,313.08, 951,337.50 and 387,507.08
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Solution
The fourth proportional to 689,313.08, 951,337.50 and 387,507.08 is: 534,807.81
Step by Step Solution
- Step 1: Write the proportion equation
689,313.08 : 951,337.50 = 387,507.08 : x - Step 2: Convert to fraction form
689,313.08/951,337.50 = 387,507.08/x - Step 3: Cross multiply
689,313.08x = 951,337.50 × 387,507.08 - Step 4: Simplify right side
689,313.08x = 368,650,016,719.50 - Step 5: Solve for x
x = 368,650,016,719.50/689,313.08 - Step 6: Final answer
x = 534,807.81
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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.