Finding the Fourth Proportional to 718,248.02, 991,226.90 and 395,957.52
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Solution
The fourth proportional to 718,248.02, 991,226.90 and 395,957.52 is: 546,445.99
Step by Step Solution
- Step 1: Write the proportion equation
718,248.02 : 991,226.90 = 395,957.52 : x - Step 2: Convert to fraction form
718,248.02/991,226.90 = 395,957.52/x - Step 3: Cross multiply
718,248.02x = 991,226.90 × 395,957.52 - Step 4: Simplify right side
718,248.02x = 392,483,748,303.44 - Step 5: Solve for x
x = 392,483,748,303.44/718,248.02 - Step 6: Final answer
x = 546,445.99
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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.