Finding the Fourth Proportional to 704,442.64, 972,130.84 and 402,643.12
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Solution
The fourth proportional to 704,442.64, 972,130.84 and 402,643.12 is: 555,647.50
Step by Step Solution
- Step 1: Write the proportion equation
704,442.64 : 972,130.84 = 402,643.12 : x - Step 2: Convert to fraction form
704,442.64/972,130.84 = 402,643.12/x - Step 3: Cross multiply
704,442.64x = 972,130.84 × 402,643.12 - Step 4: Simplify right side
704,442.64x = 391,421,794,465.82 - Step 5: Solve for x
x = 391,421,794,465.82/704,442.64 - Step 6: Final answer
x = 555,647.50
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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.