Finding the Fourth Proportional to 566,341.74, 781,557.12 and 311,698.80
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Solution
The fourth proportional to 566,341.74, 781,557.12 and 311,698.80 is: 430,147.38
Step by Step Solution
- Step 1: Write the proportion equation
566,341.74 : 781,557.12 = 311,698.80 : x - Step 2: Convert to fraction form
566,341.74/781,557.12 = 311,698.80/x - Step 3: Cross multiply
566,341.74x = 781,557.12 × 311,698.80 - Step 4: Simplify right side
566,341.74x = 243,610,416,435.46 - Step 5: Solve for x
x = 243,610,416,435.46/566,341.74 - Step 6: Final answer
x = 430,147.38
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1.5x scale
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.