Finding the Fourth Proportional to 606,643.70, 909,965.55 and 606,643.70
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Solution
The fourth proportional to 606,643.70, 909,965.55 and 606,643.70 is: 909,965.55
Step by Step Solution
- Step 1: Write the proportion equation
606,643.70 : 909,965.55 = 606,643.70 : x - Step 2: Convert to fraction form
606,643.70/909,965.55 = 606,643.70/x - Step 3: Cross multiply
606,643.70x = 909,965.55 × 606,643.70 - Step 4: Simplify right side
606,643.70x = 552,024,868,124.54 - Step 5: Solve for x
x = 552,024,868,124.54/606,643.70 - Step 6: Final answer
x = 909,965.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.