Finding the Fourth Proportional to 708,364.21, 977,565.44 and 402,435.01
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Solution
The fourth proportional to 708,364.21, 977,565.44 and 402,435.01 is: 555,373.28
Step by Step Solution
- Step 1: Write the proportion equation
708,364.21 : 977,565.44 = 402,435.01 : x - Step 2: Convert to fraction form
708,364.21/977,565.44 = 402,435.01/x - Step 3: Cross multiply
708,364.21x = 977,565.44 × 402,435.01 - Step 4: Simplify right side
708,364.21x = 393,406,557,622.05 - Step 5: Solve for x
x = 393,406,557,622.05/708,364.21 - Step 6: Final answer
x = 555,373.28
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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.