Finding the Fourth Proportional to 566,290.96, 781,479.84 and 311,641.96
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Solution
The fourth proportional to 566,290.96, 781,479.84 and 311,641.96 is: 430,064.98
Step by Step Solution
- Step 1: Write the proportion equation
566,290.96 : 781,479.84 = 311,641.96 : x - Step 2: Convert to fraction form
566,290.96/781,479.84 = 311,641.96/x - Step 3: Cross multiply
566,290.96x = 781,479.84 × 311,641.96 - Step 4: Simplify right side
566,290.96x = 243,541,909,038.09 - Step 5: Solve for x
x = 243,541,909,038.09/566,290.96 - Step 6: Final answer
x = 430,064.98
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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.