Finding the Fourth Proportional to 657,652.80, 986,479.20 and 458,587.20
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Solution
The fourth proportional to 657,652.80, 986,479.20 and 458,587.20 is: 687,880.80
Step by Step Solution
- Step 1: Write the proportion equation
657,652.80 : 986,479.20 = 458,587.20 : x - Step 2: Convert to fraction form
657,652.80/986,479.20 = 458,587.20/x - Step 3: Cross multiply
657,652.80x = 986,479.20 × 458,587.20 - Step 4: Simplify right side
657,652.80x = 452,386,734,186.24 - Step 5: Solve for x
x = 452,386,734,186.24/657,652.80 - Step 6: Final answer
x = 687,880.80
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1.5x scale
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.