Finding the Fourth Proportional to 478,525.98, 660,412.39 and 357,457.08
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Solution
The fourth proportional to 478,525.98, 660,412.39 and 357,457.08 is: 493,325.53
Step by Step Solution
- Step 1: Write the proportion equation
478,525.98 : 660,412.39 = 357,457.08 : x - Step 2: Convert to fraction form
478,525.98/660,412.39 = 357,457.08/x - Step 3: Cross multiply
478,525.98x = 660,412.39 × 357,457.08 - Step 4: Simplify right side
478,525.98x = 236,069,080,075.10 - Step 5: Solve for x
x = 236,069,080,075.10/478,525.98 - Step 6: Final answer
x = 493,325.53
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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.