Finding the Fourth Proportional to 912,239.32, 1,258,681 and 544,644.84
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Solution
The fourth proportional to 912,239.32, 1,258,681 and 544,644.84 is: 751,484.94
Step by Step Solution
- Step 1: Write the proportion equation
912,239.32 : 1,258,681 = 544,644.84 : x - Step 2: Convert to fraction form
912,239.32/1,258,681 = 544,644.84/x - Step 3: Cross multiply
912,239.32x = 1,258,681 × 544,644.84 - Step 4: Simplify right side
912,239.32x = 685,534,111,856.04 - Step 5: Solve for x
x = 685,534,111,856.04/912,239.32 - Step 6: Final answer
x = 751,484.94
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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.