Finding the Fourth Proportional to 908,747.81, 1,254,055.70 and 495,288.31
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Solution
The fourth proportional to 908,747.81, 1,254,055.70 and 495,288.31 is: 683,488.99
Step by Step Solution
- Step 1: Write the proportion equation
908,747.81 : 1,254,055.70 = 495,288.31 : x - Step 2: Convert to fraction form
908,747.81/1,254,055.70 = 495,288.31/x - Step 3: Cross multiply
908,747.81x = 1,254,055.70 × 495,288.31 - Step 4: Simplify right side
908,747.81x = 621,119,119,552.15 - Step 5: Solve for x
x = 621,119,119,552.15/908,747.81 - Step 6: Final answer
x = 683,488.99
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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.