Finding the Fourth Proportional to 931,769.19, 1,285,800.08 and 569,799.63
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Solution
The fourth proportional to 931,769.19, 1,285,800.08 and 569,799.63 is: 786,298.17
Step by Step Solution
- Step 1: Write the proportion equation
931,769.19 : 1,285,800.08 = 569,799.63 : x - Step 2: Convert to fraction form
931,769.19/1,285,800.08 = 569,799.63/x - Step 3: Cross multiply
931,769.19x = 1,285,800.08 × 569,799.63 - Step 4: Simplify right side
931,769.19x = 732,648,406,988.97 - Step 5: Solve for x
x = 732,648,406,988.97/931,769.19 - Step 6: Final answer
x = 786,298.17
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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.