Finding the Fourth Proportional to 657,605.16, 907,397.79 and 399,347.79
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Solution
The fourth proportional to 657,605.16, 907,397.79 and 399,347.79 is: 551,040.84
Step by Step Solution
- Step 1: Write the proportion equation
657,605.16 : 907,397.79 = 399,347.79 : x - Step 2: Convert to fraction form
657,605.16/907,397.79 = 399,347.79/x - Step 3: Cross multiply
657,605.16x = 907,397.79 × 399,347.79 - Step 4: Simplify right side
657,605.16x = 362,367,302,087.38 - Step 5: Solve for x
x = 362,367,302,087.38/657,605.16 - Step 6: Final answer
x = 551,040.84
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1.5x scale
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.