Finding the Fourth Proportional to 877,547.06, 1,210,991.68 and 490,365.68
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Solution
The fourth proportional to 877,547.06, 1,210,991.68 and 490,365.68 is: 676,691.63
Step by Step Solution
- Step 1: Write the proportion equation
877,547.06 : 1,210,991.68 = 490,365.68 : x - Step 2: Convert to fraction form
877,547.06/1,210,991.68 = 490,365.68/x - Step 3: Cross multiply
877,547.06x = 1,210,991.68 × 490,365.68 - Step 4: Simplify right side
877,547.06x = 593,828,751,356.67 - Step 5: Solve for x
x = 593,828,751,356.67/877,547.06 - Step 6: Final answer
x = 676,691.63
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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.