Finding the Fourth Proportional to 704,405.16, 972,069.70 and 402,591.40
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Solution
The fourth proportional to 704,405.16, 972,069.70 and 402,591.40 is: 555,570.75
Step by Step Solution
- Step 1: Write the proportion equation
704,405.16 : 972,069.70 = 402,591.40 : x - Step 2: Convert to fraction form
704,405.16/972,069.70 = 402,591.40/x - Step 3: Cross multiply
704,405.16x = 972,069.70 × 402,591.40 - Step 4: Simplify right side
704,405.16x = 391,346,901,420.58 - Step 5: Solve for x
x = 391,346,901,420.58/704,405.16 - Step 6: Final answer
x = 555,570.75
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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.