Finding the Fourth Proportional to 2,124,191.98, 2,931,368.70 and 1,157,319.28
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Solution
The fourth proportional to 2,124,191.98, 2,931,368.70 and 1,157,319.28 is: 1,597,091.76
Step by Step Solution
- Step 1: Write the proportion equation
2,124,191.98 : 2,931,368.70 = 1,157,319.28 : x - Step 2: Convert to fraction form
2,124,191.98/2,931,368.70 = 1,157,319.28/x - Step 3: Cross multiply
2,124,191.98x = 2,931,368.70 × 1,157,319.28 - Step 4: Simplify right side
2,124,191.98x = 3,392,529,513,298.54 - Step 5: Solve for x
x = 3,392,529,513,298.54/2,124,191.98 - Step 6: Final answer
x = 1,597,091.76
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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.