Finding the Fourth Proportional to 689,178.36, 950,926.74 and 402,643.08
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Solution
The fourth proportional to 689,178.36, 950,926.74 and 402,643.08 is: 555,566.01
Step by Step Solution
- Step 1: Write the proportion equation
689,178.36 : 950,926.74 = 402,643.08 : x - Step 2: Convert to fraction form
689,178.36/950,926.74 = 402,643.08/x - Step 3: Cross multiply
689,178.36x = 950,926.74 × 402,643.08 - Step 4: Simplify right side
689,178.36x = 382,884,071,447.96 - Step 5: Solve for x
x = 382,884,071,447.96/689,178.36 - Step 6: Final answer
x = 555,566.01
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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.