Finding the Fourth Proportional to 1,069,276.55, 1,474,659.47 and 661,313.57
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Solution
The fourth proportional to 1,069,276.55, 1,474,659.47 and 661,313.57 is: 912,030.02
Step by Step Solution
- Step 1: Write the proportion equation
1,069,276.55 : 1,474,659.47 = 661,313.57 : x - Step 2: Convert to fraction form
1,069,276.55/1,474,659.47 = 661,313.57/x - Step 3: Cross multiply
1,069,276.55x = 1,474,659.47 × 661,313.57 - Step 4: Simplify right side
1,069,276.55x = 975,212,312,919.99 - Step 5: Solve for x
x = 975,212,312,919.99/1,069,276.55 - Step 6: Final answer
x = 912,030.02
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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.