Finding the Fourth Proportional to 817,430.74, 1,128,463.04 and 633,259.51
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Solution
The fourth proportional to 817,430.74, 1,128,463.04 and 633,259.51 is: 874,214.68
Step by Step Solution
- Step 1: Write the proportion equation
817,430.74 : 1,128,463.04 = 633,259.51 : x - Step 2: Convert to fraction form
817,430.74/1,128,463.04 = 633,259.51/x - Step 3: Cross multiply
817,430.74x = 1,128,463.04 × 633,259.51 - Step 4: Simplify right side
817,430.74x = 714,609,951,763.51 - Step 5: Solve for x
x = 714,609,951,763.51/817,430.74 - Step 6: Final answer
x = 874,214.68
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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.