Finding the Fourth Proportional to 708,457.23, 977,656.41 and 386,164.53
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Solution
The fourth proportional to 708,457.23, 977,656.41 and 386,164.53 is: 532,899.11
Step by Step Solution
- Step 1: Write the proportion equation
708,457.23 : 977,656.41 = 386,164.53 : x - Step 2: Convert to fraction form
708,457.23/977,656.41 = 386,164.53/x - Step 3: Cross multiply
708,457.23x = 977,656.41 × 386,164.53 - Step 4: Simplify right side
708,457.23x = 377,536,228,069.14 - Step 5: Solve for x
x = 377,536,228,069.14/708,457.23 - Step 6: Final answer
x = 532,899.11
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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.