Finding the Fourth Proportional to 785,643.74, 1,178,533.49 and 217,024.64
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Solution
The fourth proportional to 785,643.74, 1,178,533.49 and 217,024.64 is: 325,555.70
Step by Step Solution
- Step 1: Write the proportion equation
785,643.74 : 1,178,533.49 = 217,024.64 : x - Step 2: Convert to fraction form
785,643.74/1,178,533.49 = 217,024.64/x - Step 3: Cross multiply
785,643.74x = 1,178,533.49 × 217,024.64 - Step 4: Simplify right side
785,643.74x = 255,770,799,417.40 - Step 5: Solve for x
x = 255,770,799,417.40/785,643.74 - Step 6: Final answer
x = 325,555.70
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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.